KR20210056094A - Display apparatus - Google Patents

Abstract

According to the present specification, provided is a display device which can maximize a feeling of viewing immersion of a user. The display device comprises: a display unit including a display panel for displaying an image; a curvature variable unit disposed on a rear surface of the display unit and varying the curvature of the display unit; and a vibration unit disposed on the rear surface of the display unit to vibrate the display panel so that sound is output in accordance with vibration of the display panel.

Description

Display device {DISPLAY APPARATUS}

The present specification relates to a display device, and more particularly, to a curved display device.

As the information society develops, demands for display devices for displaying images are increasing in various forms. Recently, as the display screen of the display device has a flat panel shape and becomes large, there is a problem in that the deviation between the viewing distance to the center area of the screen and the viewing distance of both sides of the screen increases.

In order to maximize the user's viewing immersion while improving the variation in viewing distance, a curved display device in which a flat panel display panel is curved at a constant curvature has been proposed. In a conventional curved display device, since the display panel maintains a curved state with a constant curvature, the curvature of the display panel cannot be varied (or changed) according to the user (or viewer)'s selection (or taste).

In addition, in the conventional curved display device, since the sound output from the sound device for outputting the sound related to the image proceeds to the rear or the lower side of the display panel, the sound quality is degraded due to interference between the sound reflected from the wall or the ground. Therefore, there is a problem in that it is difficult to accurately transmit sound, and the immersion of the viewer may be deteriorated.

Accordingly, a conventional curved display device can maximize the user's viewing immersion through a screen curved at a constant curvature, but it is difficult to accurately transmit sound, so that the user's auditory immersion may be degraded.

The inventor of the present application recognizes the problems with the conventional curved display device, a display device capable of varying (or changing) the curvature of the display panel (or unit), and a display device capable of varying the curvature of the display panel and Several experiments were conducted on a display device capable of maximizing the viewing immersion of the user (or viewer) by outputting sound. Through several experiments, a display device having a new structure capable of varying the curvature of a display panel, and a display device having a new structure capable of maximizing a user's viewing immersion have been invented.

A problem to be solved according to an example of the present specification is to provide a display device capable of maintaining a display panel in a flat shape or varying a curvature of the display panel.

A problem to be solved according to an example of the present specification is to provide a display device capable of maximizing the viewing immersion of a user (or viewer).

In addition to the technical problems of the present invention mentioned above, other features and advantages of the present invention will be described below or will be clearly understood by those of ordinary skill in the art from such technology and description.

A display device according to an example of the present specification includes a display unit including a display panel for displaying an image, a curvature variable unit disposed on the rear surface of the display unit and variable curvature of the display unit, and a display panel disposed on the rear surface of the display unit. It may include a vibration unit for vibrating the display panel so that sound is output according to the vibration of.

A display device according to an example of the present specification includes a display unit including a display panel that displays an image, and a curvature variable unit disposed on a rear surface of the display unit to change a curvature of the display unit, and the curvature variable unit includes a first A first arc member and a second arc member disposed in each of the first rear area and the second rear area of the display unit parallel to the direction and having a curved shape, and a first arc member and a second arc disposed at an intermediate rear portion of the display unit A driving unit that simultaneously rotates the central part of each member, and is disposed on the rear surface of the display unit so as to be parallel to the second direction crossing the first direction, and the middle part between the central part and both ends of each of the first and second arc members can be moved A guider supporting the same, and a fixing bracket disposed at each of the third rear edge portion and the fourth rear edge portion of the display unit parallel to the second direction crossing the first direction. The fixing bracket may transmit a pressing force applied by the ends of each of the first and second arc members rotating according to the driving of the driving unit to the third rear edge portion and the fourth rear edge portion of the display unit.

The display device according to the present specification may maintain the display panel in a flat shape or change (or change) the curvature of the display panel according to the selection (or taste) of the user (or viewer).

In addition, the display device according to the present specification can maximize the viewing immersion of a user (or viewer) by varying the curvature of the display panel and outputting sound to the front of the display panel.

In addition to the effects of the present specification mentioned above, other features and advantages of the present specification will be described below, or will be clearly understood by those of ordinary skill in the art from such technology and description.

1 is a front perspective view illustrating a display device according to an example of the present specification.
2 is a plan view illustrating a display device according to an example of the present specification.
3 is a side view illustrating a planar shape and a curved shape of a display device according to an example of the present specification.
4 is a rear view of a display device according to an example of the present specification.
5 is an exploded perspective view of a display device according to an example of the present specification.
6 is a diagram illustrating a curvature variable unit and a vibration unit disposed on a rear surface of the display unit illustrated in FIG. 5.
7 is a cross-sectional view of a line II' shown in FIG. 6.
8 is an enlarged view of a portion'B1' shown in FIG. 6.
9 is an enlarged view of a portion'B2' shown in FIG. 8.
10 is an enlarged view of a portion'B3' shown in FIG. 8.
11 is a view for explaining the fixed link shown in FIGS. 8 to 10.
12A is a cross-sectional view illustrating a plan view of a display device according to the present specification.
12B is a cross-sectional view illustrating a state of varying curvature of the display device according to the present specification.
13 is an enlarged view of a portion'B4' shown in FIG. 6.
14 is a diagram for describing a curvature variable unit according to another example of the present specification.
15 is an enlarged view of a portion'B5' shown in FIG. 14.
16 is an enlarged view of a portion'B6' shown in FIG. 15.
17 is an enlarged view of a portion'B7' shown in FIG. 14.
18A is a cross-sectional view illustrating a plan view of a display device according to the present specification.
18B is a cross-sectional view illustrating a state of varying curvature of the display device according to the present specification.
19 is a diagram for describing a position adjustment unit according to an example of the present specification.
20 is a diagram for describing a curvature variable unit according to another example of the present specification.
21 is an enlarged view of a portion'B8' shown in FIG. 20.
22 is an enlarged view of a portion'B9' shown in FIG. 20.
23 is an enlarged view of a portion'B10' shown in FIG. 20.
24 is a view for explaining the fixed link shown in FIGS. 20, 22, and 23;

Advantages and features of the present specification, and a method of achieving them will become apparent with reference to examples that will be described in detail later with reference to the accompanying drawings. However, the present specification is not limited to the examples disclosed below, but will be implemented in a variety of different forms, and only one example of the present specification makes the disclosure of the present specification complete, and is generally used in the technical field to which the invention of the present specification pertains. It is provided to completely inform the scope of the invention to those skilled in the art, and the invention of the present specification is only defined by the scope of the claims.

The shape, size, ratio, angle, number, etc. disclosed in the drawings for explaining an example of the present specification are exemplary, and thus the present specification is not limited to the illustrated matters. The same reference numerals refer to the same elements throughout the specification. In addition, in describing an example of the present specification, if it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the present specification, the detailed description thereof will be omitted.

When'include','have','consists of' and the like mentioned in the present specification are used, other parts may be added unless'only' is used. In the case of expressing the constituent elements in the singular, it includes the case of including the plural unless specifically stated otherwise.

In interpreting the constituent elements, it is interpreted as including an error range even if there is no explicit description.

In the case of a description of the positional relationship, for example, if the positional relationship of two parts is described as'upper','upper of','lower of','next to','right' Or, unless'direct' is used, one or more other parts may be located between the two parts.

In the case of a description of a temporal relationship, for example, when a temporal predecessor relationship is described as'after','following','after','before', etc.,'right' or'direct' It may also include cases that are not continuous unless this is used.

First, second, etc. are used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one component from another component. Accordingly, the first component mentioned below may be a second component within the technical idea of the present specification.

The term “at least one” is to be understood as including all possible combinations from one or more related items. For example, the meaning of “at least one of the first item, the second item, and the third item” means that each of the first item, the second item, or the third item, as well as the first item, the second item, and the third item, It may mean a combination of all items that can be presented from more than one.

Each of the features of the various examples in the present specification can be partially or entirely combined or combined with each other, technically various interlocking and driving are possible, and each of the examples can be implemented independently of each other or can be implemented together in an association relationship. .

Hereinafter, a preferred example of a display device according to the present specification will be described in detail with reference to the accompanying drawings. In adding reference numerals to elements of each drawing, the same elements may have the same numerals as possible even if they are indicated on different drawings. Further, the scales of the components illustrated in the accompanying drawings are not limited to the scales illustrated in the drawings, since they have different scales from the actual ones for convenience of description.

1 is a front perspective view illustrating a display device according to an example of the present specification, FIG. 2 is a plan view illustrating a display device according to an example of the present specification, and FIG. 3 is a plan view of a display device according to an example of the present specification. And is a side view showing the shape of a curved surface.

1 to 3, the display device according to an example of the present specification includes a display unit 100 implemented to display an image, and a display unit 100 in a flat form in response to a user's selection (or manipulation). (Or a planar mode) or a curved shape (or a curved mode) may include a curvature variable unit.

The display unit 100 may be mounted on the stand 300 or a wall-mounting bracket in an upright state. For example, the stand 300 or a wall-mounting bracket may be connected (or coupled) to the rear surface of the display unit 100 or a curvature variable unit. Additionally, the display unit 100 may be tilted in the front and rear (or front and rear) directions or may be moved in the vertical direction while mounted on the stand 300 or the wall-mounting bracket.

The display unit 100 according to an example may be changed in a flat shape or a curved shape according to the driving of the curvature variable unit based on a user's manipulation of the curvature variable button part CVB disposed on the stand 300. For example, when the display unit 100 has a flat shape having a curvature R0 (or first curvature) of zero, the curvature variable unit is the first button switch BS1 of the curvature variable button part CVB. In response to a user's manipulation of ), the display unit 100 may be varied in a curved shape having a curvature R1 (or a second curvature) other than zero. At this time, the curvature variable unit gradually changes the curvature of the display unit 100 according to the operation time (or press duration) of the first button switch BS1 or one-time operation of the first button switch BS1 (or Press once), the display unit 100 may be curved (or varied) with a preset curvature R1. Conversely, when the display unit 100 is in the shape of a curved surface having a curvature R1 other than 0 (zero), the curvature variable unit prevents the user's operation of the second button switch BS2 of the curvature variable button part CVB. In response, the display unit 100 may be varied or returned to a flat shape having a curvature R0 of zero.

The display unit 100 according to another example may be changed in a flat or curved shape according to a driving of a curvature variable unit based on a user's manipulation of a remote controller RC supporting a short-range wireless interface. For example, when the display unit 100 has a flat shape with a curvature R0 of 0, the curvature variable unit is the operation time (or press duration) for the first button BS1 of the remote controller RC. Depending on time), the curvature of the display unit 100 is gradually changed or the display unit 100 is bent at a preset curvature R1 according to one operation (or one press) of the first button BS1 ( Or variable). Conversely, when the display unit 100 is in the shape of a curved surface having a curvature R1 other than 0 (zero), the curvature variable unit displays the display in response to a user's manipulation of the second button BS2 of the remote controller RC. The unit 100 can be varied or returned to a plane shape having a curvature R0 of zero.

The display unit 100 of the display apparatus according to an example of the present specification may also serve as a vibration plate for outputting sound PVs toward the front FD when an image is displayed or not displayed. To this end, the display device according to an example of the present specification may further include a vibration unit 500 disposed on the rear surface of the display unit 100.

The vibration unit 500 may be implemented so that the sound PVs generated according to the vibration of the display unit 100 is output toward the front FD of the display device by using the display unit 100 as a vibration plate. For example, the vibration unit 500 vibrates the display unit 100 in response to an acoustic signal (or a voice signal), thereby vibrating the sound (PVS) (or panel vibration) according to the vibration (or panel vibration) of the display unit 100 Sound).

The vibration unit 500 according to an example may be disposed in each of the first vibration region and the second vibration region of the display unit 100. The display unit 100 forwards each of the first sound (or the left sound) and the second sound (or the right sound) generated according to the vibrations of the first vibration region and the second vibration region by the vibration unit 500. By outputting to FD), stereo sound can be realized.

The display device according to an example of the present specification may further include a rear curtain unit 400 implemented on the rear surface of the display unit 100 to cover the curvature variable unit.

The rear curtain unit 400 is deformed to correspond to the variable curvature of the display unit 100 according to the driving of the curvature variable unit, thereby preventing the apparatuses disposed on the rear side of the display unit 100 from being exposed to the outside. . This rear curtain unit 400 will be described later.

As such, the display device according to an example of the present specification is a display unit 100 (or display screen) that can be varied (or changed) in a flat shape or a curved shape according to the user (or viewer)'s selection (or taste). May be provided, and the viewer's viewing immersion may be maximized through the display unit 100 (or display screen) curved in a curved shape. In addition, the display device according to an example of the present specification outputs sound toward the front (FD) (viewer's face) of the display unit 100 according to the vibration of the display unit 100 to provide accurate and improved sound quality without loss or distortion. The sound (PVS) of can be provided to the viewer, and through this, a display device capable of increasing the viewer's auditory immersion can be provided. In addition, the display device according to an example of the present specification outputs sound toward the front (FD) (viewer's face) of the display unit 100 according to the vibration of the display unit 100 (or display screen) curved in a curved shape. By doing so, it is possible to prevent or minimize disparity (or disharmony) due to the difference in distance between video and sound, and provide accurate and improved sound quality (PVS) to viewers without loss or distortion, through which the user (or viewers ) Can maximize the viewing immersion.

4 is a rear view of a display device according to an example of the present specification, FIG. 5 is an exploded perspective view of the display device according to an example of the present specification, and FIG. 6 is a curvature disposed on the rear surface of the display unit shown in FIG. It is a diagram showing a variable unit and a vibration unit, and FIG. 7 is a cross-sectional view taken along line II' shown in FIG. 6.

4 to 7, a display device according to an example of the present specification may include a display unit 100, a curvature variable unit 200, and a stand 300.

The display unit 100 is a screen of a display device and may display an image. For example, the display unit 100 may display an image through a plurality of pixels having a self-luminous display device. Additionally, the display unit 100 may serve as a touch sensor that senses a user's touch.

The display unit 100 according to an example may include a display panel 110 and a back cover 120 as illustrated in FIG. 7.

The display panel 110 may include a flexible self-luminous display panel or a curved self-luminous display panel. For example, the display panel 110 may include a light emitting display panel, a micro light emitting diode display panel, a flexible light emitting display panel, a flexible micro light emitting diode display panel, or a quantum dot light emitting display panel, but is not limited thereto.

The display panel 110 according to an example may include a pixel array layer disposed on a base substrate and including a plurality of pixels, and an encapsulation member covering the pixel array layer.

Each of the plurality of pixels may include a light emitting device layer. The light emitting device layer may be implemented as a top light emitting structure (or a top light emitting structure) that emits light to the outside through the encapsulation member, or a bottom light emitting structure (or a bottom light emitting structure) that emits light to the outside through a base substrate. I can. In this specification, it is assumed that the light emitting device layer is implemented as a top light emitting structure.

The sealing member may include a function of protecting the light emitting device layer from oxygen and/or moisture by being implemented to cover the pixel array layer. For example, the sealing member according to the upper light emitting structure may be transparent, and the sealing member according to the lower light emitting structure may be opaque.

The display panel 110 according to an example may further include a touch sensor layer (or a touch electrode layer) for sensing a user's touch position. When the light emitting device layer has a top light emitting structure, the touch sensor layer may be disposed on the encapsulation member. When the light emitting device layer has a lower light emitting structure, the touch sensor layer may be disposed on the base substrate.

The back cover 120 may implement a rear structure of the display unit 100. The back cover 120 may be disposed on the rear surface of the display panel 110 to cover or support the rear surface of the display panel 110.

The back cover 120 according to an example may include a metal material or a metal alloy material. For example, the back cover 120 may have any one material of aluminum, an aluminum alloy, a magnesium alloy, an alloy of iron and nickel, and stainless steel, an alloy material thereof, or a bonding structure, It is not limited thereto.

The back cover 120 according to an example may be connected (or coupled) to the rear surface of the display panel 110 via the cover connecting member 130.

The cover connecting member 130 may be interposed between the back cover 120 and the rear surface of the display panel 110 to provide an air gap AG between the back cover 120 and the rear surface of the display panel 110.

The cover connection member 130 according to an example may be an adhesive resin, a double-sided tape, or a double-sided adhesive foam pad, and may have elasticity for shock absorption.

The cover connection member 130 according to an example may include a magnet. For example, the cover connecting member 130 may be a rubber magnet, but is not limited thereto.

The display unit 100 according to an example may further include a middle frame 140.

The middle frame 140 may be disposed between a rear edge portion of the display panel 110 and a front edge portion of the back cover 120. The middle frame 140 surrounds both the outer surface (or outer wall) of the display panel 110 and the outer surface (or outer wall) of the back cover 120 to cover the exterior of each of the display panel 110 and the back cover 120. The side surface can be protected and the outer design of the side surface of the display device can be improved. For example, the middle frame 140 may be expressed as a middle cabinet, a middle cover, or a middle chassis, but is not limited to the term.

The middle frame 140 according to an example includes a support part supporting the edge of each of the display panel 110 and the back cover 120, and sidewalls surrounding each side of the display panel 110 and the back cover 120 May contain wealth. For example, the middle frame 140 may have a frame structure having a cross-sectional structure of a “├ ” shape or a “ ┤ ” shape in which the support part and the side wall part form a single body.

In the middle frame 140 according to an example, the first side of the support part is coupled to the rear edge of the display panel 110 through an adhesive member, and the second surface of the support part is the back cover 120 through the adhesive member. ) Can be combined with the front edge.

In the middle frame 140 according to an example, the first side of the support part is spaced apart from the rear edge part of the display panel 110, and the second side of the support part is a front edge part of the back cover 120 through an adhesive member. Can be combined with

The middle frame 140 according to an example may be made of a metal material or a plastic material. For example, the middle frame 140 may be made of a metal material to improve the side appearance design of the display device and protect the side of the display device, but is not necessarily limited to the metal material.

4 to 6, the display unit 100 according to an example may further include at least one rigid member 150.

At least one rigid member 150 may be disposed on the rear surface of the display unit 100 so as to be parallel to the first direction X. At least one rigid member 150 according to an example may be connected (or coupled) to a rear middle region of the display unit 100 parallel to the first direction X. The at least one rigid member 150 may be implemented to have a constant length parallel to the first direction X and a constant width parallel to the second direction Y crossing the first direction X. For example, the at least one rigid member 150 may be made of a metal material, but is not limited thereto. Such at least one rigid member 150 may be fixed to the rear surface of the back cover 120 by a coupling member such as a screw or a bolt, but is not limited thereto. It can also be fixed to the rear.

The curvature variable unit 200 is disposed on the rear surface of the display unit 100 and may change the curvature of the display unit 100. For example, the curvature variable unit 200 may be disposed on the rear surface of the back cover 120.

The curvature variable unit 200 displays both sides of the display unit 100 rather than the center by moving (or advancing) both sides of the display unit 100 toward the front (FD) of the display device in response to manipulation of a user (or viewer). It can protrude toward the front (FD) of the device. Accordingly, as both side portions of the display unit 100 protrude toward the front FD of the display device rather than the central portion, the display unit 100 may be varied in a curved shape having a curvature other than zero. For example, the display unit 100 that has been changed into a curved shape may have a curved shape in which a central portion is concavely curved from both sides when a viewer located in the front of the display device looks at it. The curved display unit 100 may provide a user with a more three-dimensional and immersive image. For example, the curved display unit 100 may be implemented when one user rather than a plurality of users views an image, but is not limited thereto.

The curvature variable unit 200 moves (or reverses) both sides of the display unit 100 protruding toward the front side (FD) of the display device toward the rear side (RD) of the display device in response to a user's manipulation. Both sides of the can be returned to the same plane as the central part. Accordingly, the display unit 100 may be varied in a plane shape having a curvature of zero as both side portions and the center portion are positioned on the same plane. The flat display unit 100 may be implemented when a plurality of users view an image rather than a single user, but is not limited thereto.

The curvature variable unit 200 according to an example may include an arc member 210, a driving unit 220, and a guider 230.

The arc member 210 may be disposed on the rear surface of the display unit 100. For example, the arc member 210 may be disposed on the rear surface of the back cover 120.

The arc member 210 according to an example may have a curved shape. For example, the arc member 210 may be a curvature variation member or curvature changing member, a curvature variation rod, a curvature variation bar, or a curvature variation pipe. ), etc., and is not limited to the term.

The arc member 210 rotates according to the driving of the driving unit 220 to move both sides of the display unit 100 toward the front (FD) or rear (RD) of the display device. For example, the arc member 210 may rotate up to 90 degrees in the first rotation direction in place according to the driving of the driving unit 220 or up to 90 degrees in the second rotation direction opposite to the first rotation direction. have. Here, the first rotation direction may be a forward rotation or a clockwise rotation, and the second rotation direction may be a reverse rotation or a counterclockwise rotation, but is not limited thereto and may be vice versa.

The arc member 210 according to an example may include a first arc member 211 and a second arc member 213.

The first arc member 211 may be disposed in the first rear area RA1 of the display unit 100 parallel to the first direction X. For example, the first arc member 211 may be disposed in the first rear area RA1 of the back cover 120. The first rear area RA1 may be an upper rear area adjacent to the first long side of the rear surface of the display unit 100 based on the upright state or the second direction Y. For example, the first rear area RA1 of the back cover 120 may be between the rear middle area and the first long side of the display unit 100 parallel to the first direction X.

The first arc member 211 may have a curved shape. The first arc member 211 may have a convex curved shape toward the center of the rear surface of the display unit 100. The central portion (or length central portion) of the first arc member 211 is adjacent to the rear central portion of the display unit 100, and both ends (or both sides) of the first arc member 211 are in the display unit 100. Each of the first short side and the second short side and the first long side may be adjacent to the upper left and right corner portions connected to each other. For example, one end (or first end) of the first arc member 211 is adjacent to the upper right corner of the display unit 100, and the other end (or second end) of the first arc member 211 is It may be adjacent to the upper left corner of the display unit 100.

The second arc member 213 may be disposed in the second rear area RA2 of the display unit 100 parallel to the first direction X. The second arc member 213 may be disposed in the second rear area RA2 of the back cover 120. The second rear area RA2 may be a lower rear area adjacent to the second long side of the rear surface of the display unit 100 based on the upright state or the second direction Y. The second rear area RA2 of the back cover 120 may be between the second long side and the rear middle area of the display unit 100.

The second arc member 213 may have a curved shape. The second arc member 213 may have a convex curved shape toward the center of the rear surface of the display unit 100. The central portion (or length central portion) of the second arc member 213 is adjacent to the rear central portion of the display unit 100, and both ends (or both sides) of the second arc member 213 are in the display unit 100. The first short side and the second short side and the second long side may be adjacent to lower left and right corner portions connected to each other. For example, one end (or first end) of the second arc member 213 is adjacent to the lower right corner of the display unit 100, and the other end (or second end) of the second arc member 213 is It may be adjacent to the lower left corner of the display unit 100.

The first arc member 211 and the second arc member 213 may be disposed on the rear surface of the display unit 100 so as to be symmetrical to each other with a rear intermediate area or a vertical intermediate line VCL interposed therebetween. have. Here, the vertical middle line VCL of the display unit 100 may be located on the center of the short side length (or vertical length) of the display unit 100.

Each of the first arc member 211 and the second arc member 213 according to an example may include a curved shape having a curvature corresponding to a maximum curvature of the display unit 100 to be implemented. Each of the first arc member 211 and the second arc member 213 may be an arc rod, arc bar, or arc pipe having a curved shape while having a circular cross section. have. For example, each of the first arc member 211 and the second arc member 213 may be made of a metal material, but is not limited thereto.

The driving unit 220 may be disposed in the rear middle area of the display unit 100. The driving unit 220 may be disposed between the first arc member 211 and the second arc member 213.

The driving unit 220 may rotate the first arc member 211 and the second arc member 213 at the same time. The driving unit 220 may simultaneously rotate the first arc member 211 and the second arc member 213 in a rotation direction opposite to each other in place. For example, the driving unit 220 rotates the first arc member 211 in place by a maximum of 90 degrees in the first rotation direction and at the same time, the second arc member 213 is rotated in place by a maximum of 90 degrees in the second rotation direction. Can be rotated up to. Conversely, the driving unit 220 rotates the first arc member 211 in place by a maximum of 90 degrees in the second rotation direction and at the same time rotates the second arc member 213 in place by a maximum of 90 degrees in the first rotation direction. I can make it.

The driving unit 220 may rotate each of the first arc member 211 and the second arc member 213 simultaneously in place through linear motion linked to the rotational motion of the rotary motor.

The guider 230 is disposed on the rear surface of the display unit 100 so as to be parallel to the second direction Y, and may support each of the first and second intermediate portions of the arc member 210 so as to be movable. The first middle portion of the arc member 210 may be an intermediate (or left middle) between the center and one end (or first end), and the second intermediate portion of the arc member 210 is the center and the other end (or second end) It may be in the middle (or right in the middle). The guider 230 may prevent the arc member 210 from being lifted when the arc member 210 having a curved shape rotates.

Each of the one side and the other side of the guider 230 may be fixed to the rear side of the display unit 100. Each of one side and the other side of the guider 230 may be fixed to the rear side of the back cover 120. An intermediate portion between one side and the other side of the guider 230 may be spaced apart from the rear surface of the display unit 100. Accordingly, the arc member 210 is disposed to be movable in a space between the rear surface of the display unit 100 and the middle portion of the guider 230 so that lifting can be prevented by the guider 230 when rotating. Using 230 as a support, both sides of the display unit 100 may protrude toward the front FD of the display device.

The guider 230 according to an example is disposed in each of the third rear area RA3 and the fourth rear area RA4 of the display unit 100, and the first arc member 211 and the second arc member 213 Each can be supported movably.

In the display unit 100, the third rear area RA3 is a right area among the rear surfaces of the display unit 100 based on the horizontal center line HCL of the display unit 100 parallel to the second direction Y. I can. The fourth rear area RA4 may be a left area of the rear surface of the display unit 100 based on the horizontal center line HCL of the display unit 100. Here, the horizontal center line HCL of the display unit 100 may be located on the center of the long side length (or horizontal length) of the display unit 100.

The guider 230 according to an example may include a first guide member 231 and a second guide member 233.

The first guide member 231 is disposed in the third rear area RA3 of the display unit 100 and may support the first intermediate portions of each of the first arc member 211 and the second arc member 213 to be movable. I can.

One side of the first guide member 231 is fixed to the first rear area RA1 of the display unit 100, and the other side of the second guide member 231 is the second rear area RA2 of the display unit 100 Can be fixed to For example, one side of the first guide member 231 is fixed to the first rear area RA1 of the back cover 120 by a coupling member such as a screw or bolt, and the other side of the second guide member 231 It may be fixed to the second rear area RA2 of the back cover 120 by a coupling member such as screws or bolts.

The middle portion between one side and the other side of the first guide member 231 crosses the first middle portion of each of the first arc member 211 and the second arc member 213 so that the third rear area of the back cover 120 ( RA3) can be placed on. The middle portion of the first guide member 231 may be spaced apart from the rear surface of the back cover 120 by a height of one side and the other side by a distance higher than the diameter of the arc member 210. Accordingly, the first intermediate portion of each of the first arc member 211 and the second arc member 213 may be movable within the spaced space between the intermediate portion of the first guide member 231 and the rear surface of the back cover 120. have.

The second guide member 233 is disposed in the fourth rear area RA4 of the display unit 100 and may support the second intermediate portions of each of the first arc member 211 and the second arc member 213 to be movable. I can.

One side of the second guide member 233 is fixed to the first rear area RA1 of the display unit 100, and the other side of the second guide member 233 is the second rear area RA2 of the display unit 100 Can be fixed to For example, one side of the second guide member 233 is fixed to the first rear area RA1 of the back cover 120 by a coupling member such as a screw or bolt, and the other side of the second guide member 233 It may be fixed to the second rear area RA2 of the back cover 120 by a coupling member such as screws or bolts.

The fourth rear region of the back cover 120 so as to intersect the second intermediate portions of the first arc member 211 and the second arc member 213, respectively, at an intermediate portion between one side and the other side of the second guide member 233 ( RA4) can be placed on. The middle portion of the second guide member 233 may be spaced apart from the rear surface of the back cover 120 by a height of one side and the other side by a distance higher than the diameter of the arc member 210. Accordingly, the second intermediate portion of each of the first arc member 211 and the second arc member 213 may be movable within a space between the intermediate portion of the second guide member 233 and the rear surface of the back cover 120. have.

The curvature variable unit 200 according to an example may further include a fixing bracket 240.

The fixing bracket 240 is disposed in each of the third rear area RA3 and the fourth rear area RA4 of the display unit 100 and connects the ends of each of the first arc member 211 and the second arc member 213 to each other. It can be supported to be movable. The fixing bracket 240 supports the ends of each of the first arc member 211 and the second arc member 213 to be movable, and the ends of each of the first arc member 211 and the second arc member 213 You can guide the movement. To this end, the fixing bracket 240 includes a side groove (or side pocket portion) having a certain depth from the inner surface so that the ends of each of the first arc member 211 and the second arc member 213 are movably inserted. can do. For example, the fixing bracket 240 may be fixed to be adjacent to each corner portion of the back cover 120 in the third rear area RA3 and the fourth rear area RA4 of the display unit 100. These fixing brackets 240 are applied by the ends of each of the first arc member 211 and the second arc member 213 when each of the first arc member 211 and the second arc member 213 rotates. The pressing force may be transmitted to each of the third rear edge portion and the fourth rear edge portion of the display unit 100. In this case, the fixing bracket 240 allows the ends of each of the first arc member 211 and the second arc member 213 to be in surface contact with the display unit 100, and through this, the first arc member 211 and the first arc member 211 2 The arc member 213 may also serve to prevent local damage to the display unit 100 due to local point contact between the end of each of the arc members 213 and the display unit 100.

The fixing bracket 240 according to an example may include first to fourth fixing brackets 241, 242, 243 and 244.

The first fixing bracket 241 is disposed in the upper area of the third rear area RA3 of the display unit 100 and can support one end (or the first end) of the first arc member 211 so as to be movable. have. For example, the first fixing bracket 241 may be fixed to the third rear area RA3 adjacent to the upper right corner of the back cover 120.

The second fixing bracket 242 is disposed in the upper area of the fourth rear area RA4 of the display unit 100 and can support the other end (or the second end) of the first arc member 211 so as to be movable. have. For example, the second fixing bracket 242 may be fixed to the fourth rear area RA4 adjacent to the upper left corner of the back cover 120.

The third fixing bracket 243 is disposed in the lower area of the third rear area RA3 of the display unit 100 and can support one end (or the first end) of the second arc member 213 so as to be movable. have. For example, the third fixing bracket 243 may be disposed parallel to the first fixing bracket 241 and fixed to the third rear area RA3 adjacent to the lower right corner of the back cover 120.

The fourth fixing bracket 244 is disposed in the lower area of the fourth rear area RA4 of the display unit 100 and can support the other end (or the second end) of the second arc member 213 so as to be movable. have. For example, the fourth fixing bracket 244 may be disposed parallel to the second fixing bracket 242 and fixed to the fourth rear area RA4 adjacent to the lower left corner of the back cover 120.

The stand 300 is disposed on the rear surface of the display unit 100 and may support the display unit 100 in an upright state. For example, the stand 300 may be supported by the stand support blocks 301 and 303 disposed on the curvature variable unit 200.

The stand 300 according to an example may include a pedestal 310 and a post 330.

The pedestal 310 may be implemented to have a certain size. The pedestal 310 may include a variable curvature control circuit for controlling the driving unit 220 of the variable curvature unit 200 according to a user's manipulation of the variable curvature button unit CVB and the button unit CVB.

The post 330 may be disposed perpendicular to the pedestal 310 and coupled to the stand support blocks 301 and 303 disposed on the curvature variable unit 200. Accordingly, the display unit 100 may be supported or mounted on the post 330 of the stand 300 in an upright state.

The display device according to an example of the present specification may further include a speaker unit 350 built into the stand 300. The speaker unit 350 may be built into the post 330 of the stand 300. The speaker unit 350 according to an example may be a woofer speaker, but is not limited thereto.

The display device according to an example of the present specification may further include a rear curtain unit 400.

3 to 5, the rear curtain unit 400 may be implemented on the rear surface of the display unit 100 to cover the curvature variable unit 200. The rear curtain unit 400 may implement a rear structure of the display device. The rear curtain unit 400 may be deformed to correspond to a change in curvature of the display unit 100 according to the driving of the curvature variable unit 200.

The rear curtain unit 400 according to an example may include a curtain edge frame 410, a curtain rear frame 430, and a plurality of curtain members 450.

The curtain edge frame 410 is connected to the rear edge of the display unit 100 and may include a first opening. For example, the curtain edge frame 410 may be implemented in the form of a frame so as to have a first opening overlapping the rear surface of the display unit 100 except for the rear edge portion of the display unit 100. The curtain edge frame 410 may be fixed to the rear edge of the back cover 120 by a coupling member such as screws or bolts.

The curtain rear frame 430 may include a second opening coupled to the curtain edge frame 410 and overlapping the first opening. For example, the curtain rear frame 430 may be implemented in the form of a frame to have a second opening overlapping the first opening of the curtain edge frame 410. The curtain rear frame 430 may be fixed to the curtain edge frame 410 by a coupling member such as screws or bolts.

The plurality of curtain members 450 may be fixed to the curtain rear frame 430 so as to be parallel to the second direction Y and spaced apart from each other along the first direction X. The plurality of curtain members 450 may be disposed in the second opening of the curtain rear frame 430 so as to be parallel to the second direction Y and spaced apart from each other along the first direction X. For example, each of the plurality of curtain members 450 is disposed in the second opening of the curtain rear frame 430 to have a certain tension, and is inclined to have a certain angle to correspond to the variable curvature of the display unit 100. I can. Each of the plurality of curtain members 450 according to an example may include a fiber material or a fabric material that is deformable to correspond to a variable curvature of the display unit 100.

The rear curtain unit 400 according to an example may further include a stand connector 470. The stand connector 470 is implemented by removing the middle portions of the plurality of curtain members 450, so that the rear middle portion of the display unit 100 may be exposed to the rear RD of the display device.

The display device according to an example of the present specification may further include a vibration unit 500.

4 to 7, the vibration unit 500 is disposed on the rear surface of the display unit 100 and may be implemented to vibrate the display panel 110 so that sound is output according to the vibration of the display panel 110. have. For example, the vibration unit 500 vibrates each of the first vibration region (or the third rear region RA3) and the second vibration region (or the fourth rear region RA4) of the display unit 100 By outputting each of the first sound (or left sound) and the second sound (or right sound) generated in each of the first vibration region and the second vibration region of the unit 100 to the front side (FD) of the display unit 100 You can implement stereo sound.

The vibration unit 500 may be supported by the back cover 120 of the display unit 100 and penetrate the back cover 120 to be connected to the rear surface of the display panel 110. To this end, the back cover 120 may include a through hole 121 into which the vibration unit 500 can be inserted.

The vibration unit 500 according to an example may include first and second vibration units 510 and 530.

The first vibration unit 510 vibrates the first vibration region RA3 of the display unit 100 to generate a first sound (or left sound) generated in the first vibration region of the display unit 100. ) Can be output to the front (FD) side. For example, the first vibration unit 510 may be supported by the back cover 120 and connected to the rear surface of the display panel 110 by passing through the through hole 121 disposed in the back cover 120.

The second vibration unit 530 vibrates the second vibration region RA4 of the display unit 100 to generate a second sound (or a right sound) generated in the second vibration region of the display unit 100. ) Can be output to the front (FD) side. For example, the second vibration unit 510 may be supported by the back cover 120 and connected to the rear surface of the display panel 110 by passing through the through hole 121 disposed in the back cover 120.

Each of the first vibration unit 510 and the second vibration unit 530 according to an example may include first and second sound generating units 511 and 513 disposed parallel to each other on the display unit 100. .

The first and second sound generating units 511 and 513 are supported by the back cover 120 of the display unit 100 so as to be parallel to each other, and the first and second through holes 121 disposed in the back cover 120 2 It may pass through each of the through holes 121a and 121b to be respectively connected to the rear surface of the display panel 110.

The first sound generating unit 511 of the first vibration unit 510 passes through a first through hole 121a disposed in the back cover 120 overlapping the first vibration area RA3 of the display unit 100 Thus, it is connected to the first vibration region RA3 of the display panel 110 and may be coupled to the rear surface of the back cover 120 around the first through hole 121a.

The second sound generating unit 513 of the first vibration unit 510 passes through a second through hole 121b disposed in the back cover 120 overlapping the first vibration region RA3 of the display unit 100 Thus, it is connected to the first vibration region RA3 of the display panel 110 and may be coupled to the rear surface of the back cover 120 around the second through hole 121b.

The first sound generating unit 511 of the second vibration unit 530 passes through the first through hole 121a disposed in the back cover 120 overlapping the second vibration area RA4 of the display unit 100 Thus, it is connected to the second vibration area RA4 of the display panel 110 and may be coupled to the rear surface of the back cover 120 around the first through hole 121a.

The second sound generating unit 513 of the second vibration unit 530 passes through the second through hole 121b disposed in the back cover 120 overlapping the second vibration area RA4 of the display unit 100 Thus, it is connected to the second vibration area RA4 of the display panel 110 and may be coupled to the rear surface of the back cover 120 around the second through hole 121b.

Each of the first and second sound generating units 511 and 513 of the first vibration unit 510 and the second vibration unit 530 according to an example is a base frame 501, a magnet 502, and a bobbin 503. ), a coil 504, a center pole 505, and a damper 506.

The base frame 501 may be expressed as a fixing part fixed to the back cover 120. The magnet 502, the bobbin 503, the coil 504, the center pole 505, and the damper 506 may be expressed as a vibration unit for vibrating the display panel 110, but are not limited thereto.

The base frame 501 according to an example may include a frame body 501a, an upper plate 501b, and a protruding bracket 501c.

The frame body 501a may be fixed to the back cover 120. The frame body 501a may serve as a lower plate supporting the magnet 502.

The upper plate 501b may be disposed on the front edge of the frame body 501a to have a cylindrical shape having a hollow portion. The frame body 501a and the upper plate 501b may be formed of one body having a "U" shape. For example, the frame body 501a and the upper plate 501b are not limited to terms, and may be expressed in other terms such as yoke.

The protruding bracket 501c may protrude from the side surface of the upper plate 501b. The protruding bracket 501c is fixed to the rear surface of the back cover 120 by a fastening member 515, through which the base frame 501 may be fixed to the back cover 120.

The fastening member 515 may be a screw or bolt that passes through the protruding bracket 501c and is fastened to the rear surface of the back cover 120. In this case, a buffer member 600 may be interposed between the rear surface of the back cover 120 and the protruding bracket 501c.

When the curvature of the display panel 110 is varied, the shock absorbing member 600 tilts the base frame 501 according to the curvature of the display panel 110, thereby causing a contact state between the sound generating units 511 and 513 and the display panel 110. Can be maintained. For example, the buffer member 600 may be an elastic spring or an elastic pad, but is not limited thereto.

The magnet 502, the bobbin 503, and the coil 504 are disposed on the base frame 501 and may be expressed as a magnetic circuit unit or a magnetic vibration unit that vibrates the display panel 110.

The magnetic circuit unit according to an example has an external magnetic type or a dynamic type structure including a magnet 502 disposed outside the coil 504, or a magnet disposed inside the coil 504 It may have an internal magnetic type or micro-type structure including 502. The sound generating units 511 and 513 including magnetic circuit units having a magnetic-resistant type structure have an advantage of having a small leakage magnetic flux and a small overall size. The sound generating units 511 and 513 according to the present specification may have an external-type or internal-type structure, and in the following description, it is assumed that they have an internal-type structure.

The magnet 502 may be disposed in the groove of the base frame 501. The magnet 502 may be a permanent magnet having a cylindrical shape that can be inserted into the bobbin 503.

The bobbin 503 may be disposed on the base frame 501 to surround the magnet 502 and may be coupled to the rear surface of the display panel 110. The bobbin 503 may have a circular shape or an ellipse shape, but is not limited thereto. Oval shapes include elliptical shapes, rectangular shapes with rounded corners, or non-circular curved shapes having a width different from its height However, it is not necessarily limited thereto. For example, in the oval-shaped bobbin 503, the ratio of the diameter of the major axis and the diameter of the minor axis may be in the range of 1.3:1 to 2:1. The oval-shaped bobbin 503 may improve sound in a high-pitched range than that of a circular shape, and may generate less heat due to vibration, and thus may have excellent heat dissipation characteristics.

The coil 504 is wound around the outer circumferential surface of the bobbin 503 to receive a current (or voice current) of a driving signal from the outside. The coil 504 may be raised and lowered together with the bobbin 503. The coil 504 may be expressed as a voice coil or the like, but is not limited to this term. When current is applied to the coil 504, the entire bobbin 503 moves up and down according to Fleming's left-hand rule based on the applied magnetic field formed around the coil 504 and the external magnetic field formed around the magnet 502 Then, a sound (or panel vibration sound) is generated by the vibration of the display panel 110 due to the vertical movement (or vibration) of the bobbin 503, and this sound is directed toward the front (FD) of the display unit 100 Can be output.

The center pole 505 may be disposed on the magnet 502 to guide the vibration of the bobbin 503. For example, the center pole 505 may be surrounded by the bobbin 503 by being inserted or received in the hollow portion of the bobbin 503. For example, the center pole 505 may be expressed as an elevator guide or pole pieces, but is not limited thereto.

The damper 506 may be disposed between the base frame 501 and the bobbin 503. The damper 506 according to an example may be disposed between a protruding frame protruding from the frame body 501a of the base frame 501 to surround the upper plate 501b and an upper outer peripheral surface of the bobbin 503. The damper 506 may contract and relax according to the vibration of the bobbin 503 by having a corrugated structure between one end and the other end. The damper 506 may limit the vibration distance (or vertical movement distance) of the bobbin 503 through a restoring force. As an example, when the bobbin 503 vibrates more than a certain distance or less than a certain distance, the bobbin 503 may return to its original position by the restoring force of the damper 506. For example, the damper 506 may be expressed in other terms such as spider, suspension, or edge, but is not limited thereto.

Each of the first and second sound generating units 511 and 513 according to an example may further include a bobbin protection member 507 disposed above the bobbin 503. For example, the bobbin protection member 507 may be expressed as a bobbin ring or a bobbin cap, but is not limited thereto.

The bobbin protection member 507 is disposed on the front side (or the front end) of the bobbin 503 to transmit the lifting (or vibration) of the bobbin 503 to the rear side of the display panel 110. The bobbin protection member 507 according to an example has a ring shape disposed on the front surface of the bobbin 503, a disk shape covering the entire front surface of the bobbin 503, or a cap shape surrounding the front and upper outer surfaces of the bobbin 503 It may have, but is not limited to the shape.

The bobbin protection member 507 may be disposed (or coupled) to the rear surface of the display panel 110 via the first adhesive member. The first adhesive member may be interposed between the rear surface of the display panel 110 and the bobbin protection member 507. The first adhesive member according to an example may include an adhesive or a double-sided tape, but is not limited thereto.

The bobbin protection member 507 according to an example may be configured in the form of an injection product or a metal mold product. For example, the bobbin protection member 507 may be made of a fiber reinforcement material, a composite resin containing a fiber reinforcement material, or a metal. In this case, heat dissipation that radiates heat generated when the sound generating units 511 and 513 Can also serve as a function.

8 is an enlarged view of a portion'B1' shown in FIG. 6, FIG. 9 is an enlarged view of a portion'B2' shown in FIG. 8, and FIG. 10 is an enlarged view of a portion'B3' shown in FIG. , This is a view for explaining the driving unit of the curvature variable unit.

8 to 10, the driving unit 220 of the curvature variable unit 200 according to an example of the present specification is a support plate 221, a holder 222, a fixed link 223, at least one rotary motor 224, and a gear assembly 225.

The support plate 221 may be disposed so as to overlap with the central rear portion of the display unit 100. For example, the support plate 221 is implemented to have a constant width parallel to the first direction (X) and a constant length parallel to the second direction (Y), and the first arc member 211 and the second arc member ( 213) It may be disposed (or combined) on the rear surface of the back cover 120 so as to overlap with each center (or length center). The support plate 221 may support each of the holder 222 and at least one rotation motor 224 and the gear assembly 225.

The support plate 221 may mount the stand support blocks 301 and 303 coupled to the stand 300. For example, each of the stand support blocks 301 and 303 may be coupled to each of the upper and lower sides of the support plate 221.

The holder 222 may be coupled to the support plate 221 and rotatably support the central portion of the arc member 210. Accordingly, the central portion of the arc member 210 may be rotatably disposed between the support plate 221 and the holder 222. Additionally, the driving unit 220 according to an example may further include a bearing interposed between the central portion of the arc member 210 and the holder 222.

The holder 222 according to an example is coupled to the support plate 221 and is coupled to the first holder 222a rotatably supporting the center of the first arc member 211 and the support plate 221 and is coupled to the second A second holder 222b rotatably supporting the central portion of the arc member 213 may be included.

Both ends of each of the first holder 222a and the second holder 222b according to an example may be coupled to the support plate 221 by coupling members such as screws or bolts.

The driving unit 220 according to an example includes a first bearing interposed between the center of the first arc member 211 and the first holder 222a, and the center of the second arc member 213 and the second holder 222b It may further include a second bearing interposed therebetween.

The fixed link 223 may be fixed to the center of the arc member 210. For example, the fixing link 223 may be fixed to the center of the arc member 210 by a fixing member FM such as a screw or a bolt.

The fixed link 223 according to an example includes a first fixed link FL1 fixed to the center of the first arc member 211, and a second fixed link FL2 fixed to the center of the second arc member 213. It may include.

Each of the first fixing link FL1 and the second fixing link FL2 may include a pair of link fixing portions LFP protruding parallel to each other with holders 222a and 222b therebetween. The pair of link fixing parts LFP may be fixed to the centers of the corresponding arc members 211 and 213 by the fixing member FM, respectively.

The first fixed link FL1 is disposed on the inner side of the first arc member 211 facing the rear middle region of the display unit 100 and is constant with respect to the second direction Y, as shown in FIG. 11. It may be arranged to be inclined at an angle θ. The first fixed link FL1 may be inclined at a certain angle θ from the rear surface of the display unit 100. For example, the first fixed link FL1 may be inclined 45 degrees clockwise from a vertical line extending from the central axis of the first arc member 211 in the thickness direction Z of the display unit 100. In this case, an angle between the extension line connecting the central axis of the first fixed link FL1 and the central axis of the first arc member 211 and the rear surface of the display unit 100 may be 45 degrees.

As shown in FIG. 11, the second fixed link FL2 is disposed on the inner side of the second arc member 213 facing the rear middle region of the display unit 100 and is constant with respect to the second direction Y. It may be arranged to be inclined at an angle θ. The second fixed link FL2 may be inclined at a certain angle θ from the rear surface of the display unit 100. For example, the second fixed link FL2 may be inclined by 45 degrees in a counterclockwise direction from a vertical line extending from the central axis of the second arc member 213 in the thickness direction Z of the display unit 100. In this case, an angle between the extension line connecting the central axis of the second fixed link FL2 and the central axis of the second arc member 213 and the rear surface of the display unit 100 may be 45 degrees.

Referring to FIG. 8, at least one rotation motor 224 is disposed in a rear middle region of the display unit 100 and may be supported by a support plate 221. The at least one rotation motor 224 may provide rotational force to the gear assembly 225 in response to a user manipulation for varying the curvature of the display unit 100.

The driving unit 220 according to the present example may include first and second rotation motors 224a and 224b (or a pair of rotation motors) to maintain balance, reduce noise, and secure a driving force (or rotational force) margin. .

The first and second rotation motors 224a and 224b may be disposed parallel to each other with the gear assembly 225 interposed therebetween. The drive shaft (or rotation shaft) of the first rotation motor 224a is disposed adjacent to the first arc member 211, and the drive shaft (or rotation shaft) of the second rotation motor 224b is adjacent to the second arc member 213 Can be arranged to do so. In this case, the first and second rotation motors 224a and 224b may rotate in the same direction.

8 to 11, the gear assembly 225 may be disposed on the support plate 221 and connected to the rotation motor 224. The gear assembly 225 may rotate the fixed link 223 in conjunction with the rotational motion of the rotation motor 224 and rotate the arc member 210 in place through the rotation of the fixed link 223. For example, the gear assembly 225 is interlocked with the rotational motion of the rotary motor 224 to rotate each of the first and second fixed links FL1 and FL2 of the fixed link 223 in opposite directions. Each of the first arc member 211 and the second arc member 213 may be rotated in place at the same time. The gear assembly 225 may be expressed as a gear assembly or a reduction gear unit, but is not limited thereto.

The gear assembly 225 according to an example may include a first rack gear RG1, a second rack gear RG2, a pinion gear PG, and a rotation transmission unit RTP.

The first rack gear RG1 is rotatably connected to the first fixed link FL1 and rotates the first fixed link FL1 by a maximum of 90 degrees in the first rotation direction through a linear motion along the second direction Y. It can be rotated up to or up to 90 degrees in the second direction of rotation.

One end of the first rack gear RG1 may be rotatably connected to the first fixing link FL1 through the first hinge pin HP1. The first fixing link FL1 may be connected to one end of the first rack gear RG1 through the first hinge pin HP1. Accordingly, the first fixed link FL1 may rotate the first arc member 211 by rotating according to the linear motion of the first rack gear RG1. In this case, the first rack gear RG1 may be moved along the thickness direction Z of the display unit 100 according to the rotation trajectory TR of the first fixed link FL1. For example, the first rack gear RG1 moves linearly along the second direction Y, and the distance Lt corresponding to the rotation trajectory RT of the first fixed link FL1. It can rise (Z+) or fall (Z-) along the thickness direction (Z).

The second rack gear RG2 is rotatably connected to the second fixed link FL2 and rotates the second fixed link FL2 by a maximum of 90 degrees in the first rotation direction through a linear motion along the second direction Y. It can be rotated up to or up to 90 degrees in the second direction of rotation.

One end of the second rack gear RG2 may be rotatably connected to the second fixing link FL2 through the second hinge pin HP2. The second fixing link FL2 may be connected to one end of the second rack gear RG2 through the second hinge pin HP2. Accordingly, the second fixed link FL2 may rotate according to the linear motion of the second rack gear RG2 to rotate the second arc member 213. In this case, the second rack gear RG2 may be moved along the thickness direction Z of the display unit 100 according to the rotation trajectory RT of the second fixed link FL2. For example, the second rack gear RG2 moves linearly along the second direction Y, and the distance Lt corresponding to the rotation trajectory RT of the second fixed link FL2. It can rise (Z+) or fall (Z-) along the thickness direction (Z).

The pinion gear PG may be connected (or meshed) between the first rack gear RG1 and the second rack gear RG2. The pinion gear PG may linearly move the first rack gear RG1 and the second rack gear RG2 in opposite directions according to the rotational motion. For example, the pinion gear (PG) rotates in the first rotation direction to linearly move the first rack gear (RG1) in the first linear direction (Y+) parallel to the second direction (Y), and at the same time as the second rack gear. The (RG2) may be linearly moved in a second linear direction (Y-) opposite to the first linear direction (Y+). Conversely, the pinion gear PG rotates in a second rotation direction opposite to the first rotation direction to linearly move the first rack gear RG1 in the second linear direction Y-, and at the same time, the second rack gear RG2 ) Can be linearly moved in the first linear direction (Y+).

In the pinion gear PG according to an example, the rack gears RG1 and RG2 rise (Z+) by the rotation trajectory RT of the fixed links FL1 and FL2 that rotate according to the linear motion of the rack gears RG1 and RG2. ) Or to descend (Z-). For example, the gear height (or this height) of the pinion gear (PG) exceeds the maximum ascending height (or distance) of the rack gears (RG1, RG2) by the rotation trajectory (RT) of the fixed links (FL1, FL2). Can be implemented to

The pinion gear PG according to an example may include a double gear structure including a first rotation gear RGa having a first size and a second rotation gear RGb having a second size larger than the first size. have. For example, the first rack gear RG1 and the second rack gear RG2 may be disposed on the second rotation gear RGb. The first rotation gear RGa may be connected (or meshed) between the first rack gear RG1 and the second rack gear RG2. And, the gear height (or this height) of the first rotation gear RGa exceeds the maximum ascending height (or distance) of the rack gears RG1 and RG2 by the rotation trajectory RT of the fixed links FL1 and FL2. Can be implemented to

The rotation transmission unit RTP may transmit the rotational motion of the rotation motor 224 to the pinion gear PG. The rotation transmission unit RTP may reduce the rotation speed of the rotation motor 224 to rotate the pinion gear PG. For example, the rotation transmission unit RTP may rotate the pinion gear PG in the first rotation direction by transmitting the rotation of the first rotation motor 224a in the first rotation direction to the pinion gear PG. Conversely, the rotation transmission unit RTP may rotate the pinion gear PG in the second rotation direction by transmitting the rotation of the first rotation motor 224a in the second rotation direction to the pinion gear PG.

The rotation transmission unit RTP according to an example may include a first worm 225a, a first worm gear WG1, and first and second spur gears SG1 and SG2.

The first worm 225a may be connected to the drive shaft of the first rotation motor 224a. The first worm 225a rotates in the second rotation direction according to the rotation of the first rotation direction of the first rotation motor 224a or the first rotation direction according to the rotation of the second rotation direction of the first rotation motor 224a. Can be rotated.

The first worm gear WG1 is connected (or meshed) with the first worm 225a and may rotate according to the rotational motion of the first worm 225a. For example, when the first worm 225a rotates by one, the first worm gear WG1 may rotate as much as one gear. The rotation axis direction of the first worm gear WG1 may be perpendicular to the rotation axis direction of the first worm 225a. For example, the rotation axis direction of the first worm 225a may be parallel to the second direction Y, and the rotation axis direction of the first worm gear WG1 is parallel to the thickness direction Z of the back cover 120. can do.

The first worm gear WG1 according to an example may include a double gear structure including a lower worm gear having a first size and an upper worm gear having a second size smaller than the first size. For example, in the first worm gear WG1 having a double gear structure, the lower worm gear may be connected (or meshed) with the first worm 225a, and the upper worm gear may be connected to the first spur gear SG1 It can be connected (or meshed).

The first spur gear SG1 is connected (or meshed) with the first worm gear WG1 and may rotate in a direction opposite to the rotational direction of the first worm gear WG1. For example, the first spur gear SG1 may be connected (or meshed) between the upper worm gear of the first worm gear WG1 and the second spur gear SG2.

The second spur gear SG2 may be connected (or meshed) with the first spur gear SG1 and connected (or meshed) with the pinion gear PG. The second spur gear SG2 rotates the pinion gear PG by rotating in a direction opposite to the rotational movement direction of the first spur gear SG1.

The second spur gear SG2 according to an example may include a dual gear structure including a lower spur gear having a first size and an upper spur gear having a second size larger than the first size. For example, in the second spur gear SG2 having a double gear structure, the lower spur gear may be connected (or meshed) with the second rotation gear RGb of the pinion gear PG, and the upper spur gear 2 It may be connected (or meshed) with the spur gear SG2.

The rotation transmission unit RTP may rotate the pinion gear PG in the first rotation direction by transmitting the rotation of the second rotation motor 224b in the first rotation direction to the pinion gear PG. Conversely, the rotation transmission unit RTP may rotate the pinion gear PG in the second rotation direction by transmitting the rotation of the second rotation motor 224b in the second rotation direction to the pinion gear PG. To this end, the rotation transmission unit RTP according to an example may further include a second worm 225b, a second worm gear WG2, and third and fourth spur gears SG3 and SG4.

The second worm 225b may be connected to the drive shaft of the second rotation motor 224b. The second worm 225b rotates in the second rotation direction according to the rotation of the first rotation direction of the second rotation motor 224b, or the first rotation direction according to the rotation of the second rotation direction of the second rotation motor 224b. Can be rotated.

The second worm gear WG2 is connected (or meshed) with the second worm 225b and may rotate according to the rotational motion of the second worm 225b. For example, when the second worm 225b rotates by one, the second worm gear WG2 may rotate as much as one gear. The rotation axis direction of the second worm gear WG2 may be perpendicular to the rotation axis direction of the second worm 225b. For example, the rotation axis direction of the second worm 225b may be parallel to the second direction Y, and the rotation axis direction of the second worm gear WG2 is parallel to the thickness direction Z of the back cover 120. can do.

The second worm gear WG2 according to an example may include a double gear structure including a lower worm gear having a first size and an upper worm gear having a second size smaller than the first size. For example, in the second worm gear WG2 having a double gear structure, the lower worm gear may be connected (or meshed) with the second worm 225b, and the upper worm gear may be connected to the third spur gear SG3. It can be connected (or meshed).

The third spur gear SG3 may be connected (or meshed) with the second worm gear WG2 and may rotate in a direction opposite to the rotational direction of the second worm gear WG2. For example, the third spur gear SG3 may be connected (or meshed) between the upper worm gear of the second worm gear WG2 and the fourth spur gear SG4.

The fourth spur gear SG4 may be connected (or meshed) with the third spur gear SG3 and may be connected (or meshed) with the pinion gear PG. The fourth spur gear SG4 rotates the pinion gear PG by rotating in a direction opposite to the rotational movement direction of the third spur gear SG3.

The fourth spur gear SG4 according to an example may include a dual gear structure including a lower spur gear having a first size and an upper spur gear having a second size larger than the first size. For example, in the fourth spur gear SG4 having a double gear structure, the lower spur gear may be connected (or meshed) with the second rotating gear RGb of the pinion gear PG, and the upper spur gear 3 It may be connected (or meshed) with the spur gear SG3.

The driving unit 220 of the curvature variable unit 200 according to an example of the present specification may further include a guide rail 226.

The guide rail 226 is disposed between the support plate 221 and the rack gears RG1 and RG2 and may guide the linear motion of the rack gears RG1 and RG2.

The guide rail 226 according to an example includes a first guide rail 226a disposed between the support plate 221 and the first rack gear RG1, and between the support plate 221 and the second rack gear RG2. It may include a second guide rail (226b) disposed on.

The first guide rail 226a may be disposed on the support plate 221 to have a guide groove. In this case, the first rack gear RG1 may include a sliding protrusion inserted into the guide groove of the first guide rail 226a so as to be slidable. Accordingly, the first rack gear RG1 may linearly move on the first guide rail 226a according to the rotation of the pinion gear PG.

The second guide rail 226b may be disposed on the support plate 221 to have a guide groove. In this case, the second rack gear RG2 may include a sliding protrusion inserted into the guide groove of the second guide rail 226b so as to be slidable. Accordingly, the second rack gear RG2 may linearly move on the second guide rail 226b according to the rotation of the pinion gear PG.

The driving unit 220 of the curvature variable unit 200 according to an example of the present specification may further include a limit switch unit 227.

The limit switch unit 227 is disposed on the support plate 221 so as to be adjacent to the rack gears RG1 and RG2, and may limit the maximum distance of the linear motion of the rack gears RG1 and RG2. For example, the limit switch unit 227 may be implemented to limit the maximum distance of linear motion of the rack gears RG1 and RG2 according to physical contact with the rack gears RG1 and RG2.

The limit switch unit 227 according to an example may include a first limit switch unit 227a and a second limit switch unit 227b.

The first limit switch unit 227a may limit a maximum linear motion distance of the first rack gear RG1 along the first linear direction Y+. The first limit switch unit 227a may limit the maximum rotation angle of the arc member 210 or limit the maximum curvature of the display unit 100.

The first limit switch unit 227a according to an example includes a first limit switch LS1 disposed on the support plate 221 so as to be adjacent to the first arc member 211, and an outer surface of the first rack gear RG1 It may include a first stopper (SP1) protruding from. The first limit switch LS1 generates a first limit signal when physically contacting the first stopper SP1 disposed in the first rack gear RG1 moving linearly along the first linear direction Y+. It can be provided to a variable curvature control circuit. The variable curvature control circuit may stop rotation of the rotary motor 224 in response to a first limit signal provided from the first limit switch LS1.

The second limit switch unit 227b may propose a maximum linear motion distance of the second rack gear RG2 along the second linear direction Y-.

The second limit switch unit 227b according to an example protrudes from the outer surface of the second limit switch LS2 and the second rack gear RG2 disposed on the support plate 221 so as to be adjacent to the pinion gear PG. It may include a second stopper (SP2). The second limit switch LS2 generates a second limit signal when physically contacting the second stopper SP2 disposed in the second rack gear RG2 moving linearly along the first linear direction Y+. It can be provided to a variable curvature control circuit. The variable curvature control circuit may stop rotation of the rotation motor 224 in response to a second limit signal provided from the second limit switch LS2.

12A is a cross-sectional view illustrating a plan view of a display device according to the present specification, and FIG. 12B is a cross-sectional view illustrating a state of variable curvature of the display device according to the present specification.

Referring to FIG. 12A, in the display device according to the present specification, the display unit 100 may be arranged (or implemented) in a planar shape having a curvature R0 of O (zero). For example, as shown in FIG. 8, the rotation motor 224 of the curvature variable unit 200 may be in a state in which the rotation motion is stopped according to the second limit signal of the second limit switch 227b.

The flat display unit 100 is arranged (or implemented) in a curved shape having a curvature R1 other than O (zero), as shown in FIGS. 1, 2, and 12B in response to a user's manipulation. Can be. For example, as shown in FIG. 8, the arc member 210 of the curvature variable unit 200 is laid in parallel with the rear surface of the display unit 100, and the rotation motor 224 according to the user's operation The pressing force generated at the end of the arc member 210 that is erected while being rotated is rotated up to 90 degrees in place and is erected in the thickness direction (Z) of the display unit 100 in connection with the rotational motion, and the fixing bracket 240 is applied. It is applied to the display unit 100 through this, so that both side portions of the display unit 100 may protrude toward the front FD of the display device rather than the central portion. As a result, the display unit 100 rotates the arc member 210 that is erected in the thickness direction Z of the display unit 100, so that both sides of the display unit 100 are toward the front FD of the display unit rather than the center. By protruding, it can be changed into a curved shape having a curvature R1 other than O (zero). For example, as shown in FIG. 8, the rotation motor 224 of the curvature variable unit 200 for varying the display unit 100 in a curved shape is based on the first limit signal of the first limit switch 227a. The rotational movement can be stopped.

Conversely, as shown in FIG. 8, the arc member 210 of the curvature variable unit 200 rotates the rotation motor 224 according to the user's operation in a state that is erected in the thickness direction Z of the display unit 100 It is interlocked with the motion and rotates up to 90 degrees in place, and is laid in parallel with the rear surface of the display unit 100, whereby the display unit 100 has a flat shape having a curvature (R0) of O (zero) by the elastic restoring force. Can be arranged (or implemented).

13 is an enlarged view of a portion'B4' shown in FIG. 6, which is a view for explaining a slit according to the present specification.

6, 7 and 13, the display device according to the present specification may further include a slit 125.

The slit 125 may be implemented to reduce stress applied to the vibration unit 500 when the curvature of the display unit 100 is varied. In addition, the slit 125 can minimize sound quality deterioration due to a change (or deviation) of the air gap (AG) for each location between the display panel 110 and the back cover 120 according to the curvature of the display unit 100. Can be implemented.

The slit 125 may be disposed on the back cover 120 overlapping the vibration unit 500. The slit 125 according to an example may be implemented to penetrate the back cover 120 overlapping between the pair of sound generating units 511 and 513.

The slit 125 may have a length parallel to the second direction Y. The length of the slit 125 may be longer than the length of the sound generating units 511 and 513. One end of the slit 125 may be disposed between a pair of sound generating units 511 and 513.

The slit 125 is formed to vertically penetrate the back cover 120 along the thickness direction Z of the display unit 100, so that the air gap AG between the display panel 110 and the back cover 120 (or internal The air gap) may be communicated with the outside (or external air gap) of the rear surface of the bag cover 120. The slit 125 communicates the air gap AG between the display panel 110 and the back cover 120 with the external air gap, so that when the display panel 110 vibrates (or shakes), the internal air gap AG and the It can smooth the air flow between the external air gaps. Through this, the display panel 110 can be stably vibrated, thereby increasing the low-pitched frequency characteristics and sound pressure characteristics according to the vibration of the display panel 110. For example, the low frequency band may be 800 Hz or less, but is not limited thereto.

14 is a view for explaining a curvature variable unit according to another example of the present specification, FIG. 15 is an enlarged view of a portion'B5' shown in FIG. 14, and FIG. 16 is a view of a portion'B6' shown in FIG. It is an enlarged view, and FIG. 17 is an enlarged view of a portion'B7' shown in FIG. 14, which is a change of a curvature variable unit in the display device shown in FIGS. 1 to 13. Accordingly, in the following description, the same reference numerals are assigned to the remaining constituent elements except for the curvature variable unit, and redundant description thereof will be omitted or simplified.

14 to 17, the curvature variable unit 200 according to another example of the present specification includes an arc member 210, a guider 230, a joint member 250, and a driving unit 270. Can include.

The arc member 210 may be disposed on the rear surface of the display unit 100. For example, the arc member 210 may be disposed on the rear surface of the back cover 120. The arc member 210 rotates according to the driving of the driving unit 220 to move both sides of the display unit 100 toward the front or rear side of the display device.

The arc member 210 according to an example may include a first arc member 211 and a second arc member 213.

Except that the first arc member 211 and the second arc member 213 are disposed on the rear surface of the back cover 120 so as to be parallel to each other, the first arc member 211 shown in FIGS. It may be the same as the second arc member 213.

Each of the first arc member 211 and the second arc member 213 may have a curved shape convex toward the first long side of the display unit 100.

The center (or length center) of the first arc member 211 is adjacent to the first long side of the display unit 100, and both ends (or both sides) of the first arc member 211 are It may be adjacent to the vertical middle line VCL.

The central portion (or length central portion) of the second arc member 213 is adjacent to the rear central portion of the display unit 100, and both ends (or both sides) of the second arc member 213 are It may be adjacent to the lower left and right corners.

The first arc member 211 and the second arc member 213 may rotate in the same rotation direction while moving in the same linear direction as the driving unit 270 is driven.

The guider 230 is disposed on the rear surface of the display unit 100 so as to be parallel to the second direction Y, and may support each of the first and second intermediate portions of the arc member 210 so as to be movable. The guider 230 may prevent the arc member 210 from being lifted when the arc member 210 having a curved shape rotates. Accordingly, the arc member 210 is disposed to be movable in a space between the rear surface of the display unit 100 and the middle portion of the guider 230 so that lifting can be prevented by the guider 230 when rotating. By supporting 230 as a support, both sides of the display unit 100 may protrude toward the front side of the display device.

The guider 230 according to an example is disposed in each of the third rear area RA3 and the fourth rear area RA4 of the display unit 100, and the first arc member 211 and the second arc member 213 Each can be supported movably.

The guider 230 according to an example may include first to fourth guide members 235, 236, 237, and 238.

The first guide member 235 is disposed on the third rear area RA3 of the display unit 100 and may support the first intermediate portion of the first arc member 211 to be movable.

One side and the other side of the first guide member 231 may be fixed to the first rear area RA1 of the display unit 100 with the first arc member 211 therebetween. For example, each of one side and the other side of the first guide member 235 may be fixed to the first rear area RA1 of the back cover 120 by a coupling member such as a screw or a bolt.

An intermediate portion between one side and the other side of the first guide member 235 may be disposed on the third rear area RA3 of the back cover 120 to cross the first intermediate portion of the first arc member 211. The middle portion of the first guide member 235 may be spaced apart from the rear surface of the back cover 120 by a height of one side and the other side by a distance higher than the diameter of the first arc member 211. Accordingly, the first intermediate portion of the first arc member 211 may be movable within a space between the intermediate portion of the first guide member 235 and the rear surface of the back cover 120.

The second guide member 236 may be disposed on the fourth rear area RA4 of the display unit 100 and may support the second intermediate portion of the first arc member 211 so as to be movable. The second guide member 236 is a first guide member except that it is disposed in the fourth rear area RA4 of the display unit 100 to support the second intermediate portion of the first arc member 211 to be movable. Since it is substantially the same as (235), a redundant description thereof will be omitted.

The third guide member 237 may be disposed on the third rear area RA3 of the display unit 100 and may support the first intermediate portion of the second arc member 213 so as to be movable. The third guide member 237 is a first guide member except that it is disposed on the third rear area RA3 of the display unit 100 to support the first intermediate portion of the second arc member 213 so as to be movable. Since it is substantially the same as (235), a redundant description thereof will be omitted.

The fourth guide member 238 may be disposed on the fourth rear area RA4 of the display unit 100 and may support the second intermediate portion of the second arc member 213 so as to be movable. The fourth guide member 238 is a first guide member except that it is disposed on the fourth rear area RA4 of the display unit 100 to support the second intermediate portion of the second arc member 213 to be movable. Since it is substantially the same as (235), a redundant description thereof will be omitted.

The joint member 250 may be rotatably disposed in each of the third rear area RA3 and the fourth rear area RA4 of the display unit 100 and rotatably support both ends of the arc member 210. . For example, one end of the joint member 250 may be rotatably disposed in each of the third rear area RA3 and the fourth rear area RA4 of the display unit 100. The joint member 250 rotates according to the movement and rotation of the arc member 210, and the pressing force generated at both ends of the arc member 210 is applied to the third rear area RA3 and the fourth rear surface of the display unit 100. By transferring to each of the areas RA4, both side portions of the display unit 100 may protrude toward the front of the display device rather than the central portion.

The joint member 250 according to an example may include first to fourth joint members 251, 253, 355, and 357.

The first joint member 251 may be rotatably disposed in the third rear area RA3 of the display unit 100 and rotatably support one end (or first end) of the first arc member 211. . The first joint member 251 according to an example is connected to a pin portion inserted into one end of the first arc member 211 and an end of the pin portion, and is rotatable to the third rear area RA3 of the display unit 100. It may include a bonded ring portion. The first joint member 251 may press the third rear area RA3 of the display unit 100 according to a pressing force applied from one end of the first arc member 211.

The second joint member 253 may be rotatably disposed in the fourth rear area RA4 of the display unit 100 and rotatably support the other end (or the second end) of the first arc member 211. . The second joint member 253 according to an example is connected to a pin portion inserted into the other end of the first arc member 211 and an end of the pin portion, and is rotatable to the fourth rear area RA4 of the display unit 100. It may include a bonded ring portion. The second joint member 253 may press the fourth rear area RA4 of the display unit 100 according to a pressing force applied from the other end of the first arc member 211.

The third joint member 255 may be rotatably disposed in the third rear area RA3 of the display unit 100 and rotatably support one end (or first end) of the second arc member 213. . The third joint member 255 according to an example is connected to a pin portion inserted into one end of the second arc member 213 and an end of the pin portion, and is rotatable to the third rear area RA3 of the display unit 100. It may include a bonded ring portion. The third joint member 255 may press the third rear area RA3 of the display unit 100 according to a pressing force applied from one end of the second arc member 213.

The fourth joint member 257 may be rotatably disposed on the fourth rear area RA4 of the display unit 100 and rotatably support the other end of the second arc member 213. The fourth joint member 257 according to an example is connected to a pin portion inserted into the other end of the second arc member 213 and an end of the pin portion, and is rotatable to the fourth rear area RA4 of the display unit 100. It may include a bonded ring portion. The fourth joint member 257 may press the fourth rear area RA4 of the display unit 100 according to a pressing force applied from the other end of the second arc member 213.

The curvature variable unit 200 according to another example of the present specification may further include a fixing bracket 260.

The fixing bracket 260 may be disposed on each of the third rear area RA3 and the fourth rear area RA4 of the display unit 100 and rotatably support the joint member 250. For example, the fixing bracket 260 may be disposed on each of the third rear edge portion and the fourth rear edge portion of the display unit 100, and may be coupled (or fixed) to the rear surface of the back cover 120. When the first arc member 211 and the second arc member 213 each rotate, the fixing bracket 260 is a pressing force generated at the ends of each of the first arc member 211 and the second arc member 213 Can be delivered to the display unit 100. In this case, the fixing bracket 260 makes the ends of the first arc member 211 and the second arc member 213 in surface contact with the display unit 100, through which the first arc member 211 and the first arc member 211 2 The arc member 213 may also serve to prevent local damage to the display unit 100 due to local point contact between the end of each of the arc members 213 and the display unit 100.

The fixing bracket 260 according to an example may include first and second fixing brackets 261 and 263.

The first fixing bracket 261 may be disposed at the third rear edge of the display unit 100 and rotatably support the other side (or a ring portion) of the joint member 250. For example, the first fixing bracket 261 is fixed to the third rear area RA3 adjacent to the right edge of the back cover 120, and each of the first joint member 251 and the third joint member 255 The other side (or ring portion) of the can be rotatably supported.

The second fixing bracket 263 may be disposed at the fourth rear edge of the display unit 100 and rotatably support the other side (or a ring portion) of the joint member 250. For example, the second fixing bracket 263 is fixed to the fourth rear area RA4 adjacent to the left edge of the back cover 120, and the second joint member 253 and the fourth joint member 257, respectively The other side (or ring portion) of the can be rotatably supported.

The driving unit 270 may be disposed in the middle rear area of the display unit 100. The driving unit 270 may be disposed between the first arc member 211 and the second arc member 213.

The driving unit 270 may rotate the first arc member 211 and the second arc member 213 while simultaneously moving each of the first arc member 211 and the second arc member 213. The driving unit 270 may simultaneously rotate the first arc member 211 and the second arc member 213 in opposite directions while simultaneously moving each of the first arc member 211 and the second arc member 213 in opposite linear directions. For example, the driving unit 270 linearly moves the first arc member 211 and rotates up to 90 degrees in the first rotation direction, while simultaneously moving the second arc member 213 linearly, the maximum in the second rotation direction. It can be rotated up to 90 degrees. On the contrary, the driving unit 270 linearly moves the first arc member 211 and rotates up to 90 degrees in the second rotation direction, while simultaneously moving the second arc member 213 linearly, up to 90 degrees in the first rotation direction. Can be rotated up to.

The driving unit 270 may simultaneously rotate the first arc member 211 and the second arc member 213 while simultaneously moving each of the first arc member 211 and the second arc member 213 through a linear motion linked to the rotational motion of the rotary motor.

The driving unit 270 according to an example includes a guide plate 271, a holder 272, a holder link 273, a sliding block 274, at least one rotation motor 275, and a gear assembly 276. I can.

The guide plate 271 may be disposed so as to overlap with the central rear portion of the display unit 100. For example, the guide plate 271 is implemented to have a constant width parallel to the first direction (X) and a constant length parallel to the second direction (Y), and the first arc member 211 and the second arc member ( 213) It may be disposed (or coupled) to the rear of the back cover 120 so as to overlap with each center (or length center). The guide plate 271 may support at least one rotation motor 275 and gear assembly 276, and may support the holder 272, the holder link 273, and the sliding block 274 in a slidable manner.

The guide plate 271 according to an example may include a rail plate 271a and a sliding plate 271b.

The rail plate 271a may be coupled to the rear surface of the back cover 120 so as to overlap with the center rear portion of the display unit 100 and support the sliding plate 271b in a slidable manner. The rail plate 271a may include a guide rail for guiding the linear motion of the sliding plate 271b.

The sliding plate 271b may be connected to the rail plate 271a so as to be slidable. The sliding plate 271b may include a guide groove into which the guide rail of the rail plate 271a is inserted. The sliding plate 271b may slidably support the holder 272, the holder link 273, and the sliding block 274.

The holder 272 may be coupled to the sliding plate 271b of the guide plate 271 and rotatably support the center of the arc member 210. Accordingly, the central portion of the arc member 210 may be rotatably disposed between the sliding plate 271b and the holder 272. Additionally, the driving unit 270 according to an example may further include a bearing interposed between the central portion of the arc member 210 and the holder 272.

The holder 272 according to an example is coupled to the sliding plate 271b of the guide plate 271, a first holder 272a rotatably supporting the center of the first arc member 211, and a guide plate 271 ) And rotatably supporting the central portion of the second arc member 213.

Both ends of each of the first holder 272a and the second holder 272b according to an example may be coupled to the sliding plate 271b by coupling members such as screws or bolts.

The driving unit 270 according to an example includes a first bearing interposed between the center of the first arc member 211 and the first holder 272a, and the center of the second arc member 213 and the second holder 272b It may further include a second bearing interposed therebetween.

The holder link 273 may rotatably support the central portion of the arc member 210. As an example, the holder link 273 may include a through hole through which the arc member 210 passes. As another example, the holder link 273 may include a'∪'-shaped cross-sectional structure surrounding a part of the arc member 210. For example, the holder link 273 may be disposed to surround a part of the holder 272 and may be fixed to the holder 272 by a fixing member FM such as a screw or a bolt.

The holder link 273 according to an example includes a first holder link HL1 rotatably supporting a central portion of the first arc member 211 and a first holder link HL1 rotatably supporting a central portion of the second arc member 213. It may include a 2 holder link (HL2).

The first holder link HL1 may include a cross-sectional structure in the form of a'∪' shape surrounding a part of the first arc member 211. For example, the first holder link HL1 may be disposed to surround a part of the first holder 272a and may be fixed to the first holder 272a by a fixing member FM such as a screw or a bolt.

The second holder link HL2 may include a cross-sectional structure in the form of a'∪' shape surrounding a part of the second arc member 213. For example, the second holder link HL2 may be disposed to surround a part of the second holder 272b and may be fixed to the second holder 272b by a fixing member FM such as a screw or a bolt.

The sliding block 274 is connected to the holder link 273 and may linearly move the holder link 273 along the second direction Y as the driving unit 270 is driven.

The sliding block 274 according to an example may be rotatably connected to the first holder link HL1 and rotatably connected to the second holder link HL2. For example, one end of the sliding block 274 may be rotatably connected to the first holder link HL1 by the first hinge pin HP1. The other end of the sliding block 274 may be rotatably connected to the second holder link HL2 by a second hinge pin HP2. The sliding block 274 may linearly move the first holder link HL1 and the second holder link HL2 in the same direction at the same time as the driving unit 270 is driven.

The sliding block 274 according to an example may include a rack gear RG.

The rack gear RG according to an example may be implemented on one side or the other side of the sliding block 274 parallel to the second direction Y.

The rack gear RG according to an example includes a first rack gear RG1 implemented on one side of the sliding block 274, and a second rack gear RG2 implemented on the other side of the sliding block 274. can do.

At least one rotation motor 275 may be disposed in a rear middle region of the display unit 100 and supported by a guide plate 271. The at least one rotation motor 275 may provide rotational force to the gear assembly 276 in response to a user manipulation for varying the curvature of the display unit 100.

The driving unit 270 according to the present example may include first and second rotation motors 275a and 275b (or a pair of rotation motors) to maintain balance, reduce noise, and secure a driving force (or rotational force) margin. .

The first and second rotation motors 275a and 275b may be disposed parallel to each other with the gear assembly 276 interposed therebetween. Each of the drive shaft (or rotation shaft) of the first rotation motor 275a and the drive shaft (or rotation shaft) of the second rotation motor 275b may be disposed adjacent to the first arc member 211. In this case, the first and second rotation motors 275a and 275b may rotate in the same direction.

The gear assembly 276 may be disposed on the guide plate 271 and connected to the rotation motor 275. The gear assembly 276 linearly moves the sliding block 274 in conjunction with the rotational motion of the rotation motor 275, and the arc member 210 moves through the movement of the holder link 273 according to the linear motion of the sliding block 274. You can rotate while moving. For example, the gear assembly 276 is interlocked with the rotational motion of the rotation motor 275 to rotate each of the first holder link HL1 and the second holder link HL2 of the holder link 273 in opposite directions. Each of the first arc member 211 and the second arc member 213 may be rotated in place at the same time. The gear assembly 276 may be expressed as a gear assembly, a gear box, or a reduction gear unit, but is not limited thereto.

The gear assembly 276 according to an example may include a first pinion gear PG1, a second pinion gear PG2, and a rotation transmission unit RTP.

The first pinion gear PG1 may be connected (or meshed) with the first rack gear RG1 of the sliding block 274. The first pinion gear PG1 may linearly move the first rack gear RG1 according to the rotational motion. For example, the first pinion gear PG1 may rotate in a first rotation direction to linearly move the first rack gear RG1 in a first linear direction Y+ parallel to the second direction Y. Conversely, the first pinion gear PG1 may rotate in the second rotation direction to linearly move the first rack gear RG1 in the second linear direction Y-.

The second pinion gear PG2 may be connected (or meshed) with the second rack gear RG2 of the sliding block 274. The second pinion gear PG2 may linearly move the second rack gear RG2 according to the rotational motion. For example, the second pinion gear PG2 may rotate in the second rotation direction to linearly move the second rack gear RG2 in the first linear direction Y+. Conversely, the second pinion gear PG2 may rotate in the first rotation direction to linearly move the second rack gear RG2 in the second linear direction Y-.

The rotation transmission unit RTP may transmit the rotational motion of the rotation motor 275 to the pinion gear PG. The rotation transmission unit RTP may reduce the rotation speed of the rotation motor 275 to rotate the pinion gear PG. For example, the rotation transmission unit RTP transmits the rotational motion of the first rotational motor 275a to the first pinion gear PG1 and transmits the rotational movement of the second rotational motor 275b to the second pinion gear ( PG2) can be delivered.

The rotation transmission unit RTP according to an example includes a first worm 276a, a first worm gear WG1, a first spur gear SG1, a second worm 276b, a second worm gear WG2, and It may include a second spur gear SG2.

The first worm 276a may be connected to the drive shaft of the first rotation motor 275a. The first worm 276a rotates in the second rotation direction according to the rotation of the first rotation direction of the first rotation motor 275a, or the first rotation direction according to the rotation of the second rotation direction of the first rotation motor 275a. Can be rotated.

The first worm gear WG1 is connected (or meshed) with the first worm 276a and may rotate according to the rotational motion of the first worm 276a. For example, when the first worm 276a rotates by one, the first worm gear WG1 may rotate as much as one gear. The rotation axis direction of the first worm gear WG1 may be perpendicular to the rotation axis direction of the first worm 276a. For example, the rotation axis direction of the first worm 276a may be parallel to the second direction Y, and the rotation axis direction of the first worm gear WG1 is parallel to the thickness direction Z of the back cover 120. can do.

The first worm gear WG1 according to an example may include a double gear structure including a lower worm gear having a first size and an upper worm gear having a second size smaller than the first size. For example, in the first worm gear WG1 having a double gear structure, the lower worm gear may be connected (or meshed) with the first worm 276a, and the upper worm gear may be connected to the first spur gear SG1 It can be connected (or meshed).

The first spur gear SG1 is connected (or meshed) with the first worm gear WG1 and may rotate in a direction opposite to the rotational direction of the first worm gear WG1.

The first spur gear SG1 according to an example may include a dual gear structure including a lower spur gear having a first size and an upper spur gear having a second size smaller than the first size. For example, in the first spur gear SG1 having a double gear structure, the lower spur gear may be connected (or meshed) with the upper worm gear of the first worm gear WG1, and the upper spur gear may be a first pinion. It may be connected (or meshed) with the gear PG1.

The second worm 276b may be connected to the drive shaft of the second rotation motor 275b. The second worm 276b rotates in the first rotation direction according to the rotation of the first rotation direction of the second rotation motor 275b, or the second rotation direction according to the rotation of the second rotation direction of the second rotation motor 275b. Can be rotated.

The second worm gear WG2 is connected (or meshed) with the second worm 276b and may rotate according to the rotational motion of the second worm 276b. For example, when the second worm 276b rotates by one, the second worm gear WG2 may rotate as much as one gear. The rotation axis direction of the second worm gear WG2 may be perpendicular to the rotation axis direction of the second worm 276b. For example, the rotation axis direction of the second worm 276b may be parallel to the second direction Y, and the rotation axis direction of the second worm gear WG2 is parallel to the thickness direction Z of the back cover 120. can do.

The second worm gear WG2 according to an example may include a double gear structure including a lower worm gear having a first size and an upper worm gear having a second size smaller than the first size. For example, in the second worm gear WG2 having a double gear structure, the lower worm gear may be connected (or meshed) with the second worm 276b, and the upper worm gear may be connected to the second spur gear SG2. It can be connected (or meshed).

The second spur gear SG2 may be connected (or meshed) with the second worm gear WG2 and may rotate in a direction opposite to the rotational direction of the second worm gear WG2.

The second spur gear SG2 according to an example may include a dual gear structure including a lower spur gear having a first size and an upper spur gear having a second size smaller than the first size. For example, in the second spur gear SG2 having a double gear structure, the lower spur gear may be connected (or meshed) with the upper worm gear of the second worm gear WG2, and the upper spur gear may be a second pinion. It may be connected (or meshed) with the gear PG2.

Optionally, the driving unit 270 according to the present example may be implemented including only the first rotation motor 275a, and in this case, the second rack gear RG2, the second rotation motor 275b, and the second rotation motor 275b are described above. Each of the pinion gear PG2, the second worm 276b, the second worm gear WG2, and the second spur gear SG2 may be omitted.

The driving unit 270 of the curvature variable unit 200 according to an example of the present specification may further include a limit switch unit 277.

The limit switch unit 277 is disposed on the guide plate 271 and may limit the distance of the linear motion of the sliding block 274. For example, the limit switch unit 277 may be implemented to limit the maximum distance of the linear motion of the rack gear RG according to the physical contact with the sliding block 274.

The limit switch unit 277 according to an example may include a first limit switch unit 277a and a second limit switch unit 277b.

The first limit switch unit 277a may limit a maximum linear motion distance of the sliding block 274 along the second linear direction Y-. The first limit switch unit 277a may limit the maximum rotation angle of the arc member 210 or limit the maximum curvature of the display unit 100.

The first limit switch unit 277a according to an example may include a first limit switch LS1 and a first stopper SP1.

The first limit switch LS1 may be fixed to the guide plate 271 overlapping the through slit 274a penetrating through the sliding block 274 and disposed in the through slit 274a. For example, the first limit switch LS1 is disposed on the rail plate 271a of the guide plate 271 so as to be spaced apart from the first arc member 211 by a predetermined distance, and the sliding plate 271b and the sliding block ( It may be disposed in the through slit 274a penetrating through 274.

The first stopper SP1 may be a first short side wall adjacent to the first arc member 211 while being parallel to the first direction X among side walls of the through slit 274a disposed on the sliding block 274.

When the first limit switch LS1 physically contacts the first end wall of the through slit 274a disposed in the sliding block 274 moving linearly along the second linear direction Y-, the first limit signal Can be generated and provided to a variable curvature control circuit. The variable curvature control circuit may stop rotation of the rotary motor 275 in response to a first limit signal provided from the first limit switch LS1.

The second limit switch unit 277b may limit a maximum linear motion distance of the sliding block 274 along the first linear direction Y+. The second limit switch unit 277b according to an example may include a second limit switch LS2 and a second stopper SP2.

The second limit switch LS2 may be fixed to the guide plate 271 between the first limit switch LS1 and the second arc member 213 and disposed in the through slit 274a. For example, the second limit switch LS2 is disposed on the rail plate 271a of the guide plate 271 so as to be adjacent to the first limit switch LS1, and includes the sliding plate 271b and the sliding block 274. It may be disposed in the penetrating through slit 274a.

The second stopper SP2 may be a second short side wall adjacent to the second arc member 213 while being parallel to the first direction X among sidewalls of the through slit 274a disposed on the sliding block 274.

When the second limit switch LS2 physically contacts the second end wall of the through slit 274a disposed in the sliding block 274 moving linearly along the first linear direction (Y+), the second limit signal is transmitted. It can be generated and provided to a variable curvature control circuit. The variable curvature control circuit may stop rotation of the rotary motor 275 in response to a second limit signal provided from the second limit switch LS2.

The curvature variable unit 200 according to another example of the present specification may further include a gear box 278.

The gear box 278 may be coupled to the rail plate 271a of the guide plate 271 or the rear surface of the back cover 120 and support the driving part 270.

The gear box 278 may be supported or mounted on a post of the stand. To this end, the gear box 278 may include a plurality of mounting coupling portions 278a. The plurality of mounting coupling portions 278a may be disposed on each of the upper and lower sides of the gear box 278, and may include a left and right symmetric structure based on the sliding block 274.

18A is a cross-sectional view illustrating a plan view of a display device according to the present specification, and FIG. 18B is a cross-sectional view illustrating a state of variable curvature of the display device according to the present specification.

Referring to FIG. 18A, in the display device according to the present specification, the display unit 100 may be arranged (or implemented) in a planar shape having a curvature R0 of O (zero). For example, as shown in FIG. 15, the rotation motor 275 of the curvature variable unit 200 may be in a state in which the rotation motion is stopped according to the second limit signal of the second limit switch 277b.

The flat display unit 100 is arranged (or implemented) in a curved shape having a curvature R1 other than O (zero), as shown in FIGS. 1, 2, and 18B in response to a user's manipulation. Can be. For example, as shown in FIG. 15, the arc member 210 of the curvature variable unit 200 is laid in parallel with the rear surface of the display unit 100, and the rotation motor 275 according to the user's operation As the sliding block 274 moves linearly in the second linear direction (Y-) in connection with the rotational motion, the display unit 100 rotates in the first rotational direction up to 90 degrees while moving in the second linear direction (Y-). ), the pressing force generated at the end of the arc member 210 that is erected while rotating is applied to the display unit 100 through the joint member 250 and the fixing bracket 260, Accordingly, both side portions of the display unit 100 may protrude toward the front FD of the display device rather than the central portion. Consequently, in the display unit 100, both sides of the display unit 100 are at the center according to the linear motion of the arc member 210 and the rotational motion of the arc member 210 erected in the thickness direction Z of the display unit 100. By protruding toward the front FD of the display device, it may be changed to a curved shape having a curvature R1 other than 0 (zero). For example, as shown in FIG. 15, the rotation motor 275 of the curvature variable unit 200 for varying the display unit 100 in a curved shape is based on the first limit signal of the first limit switch 277a. The rotational movement can be stopped.

Conversely, as shown in FIG. 15, the arc member 210 of the curvature variable unit 200 is interlocked with the rotational motion of the rotation motor 275 according to the user's manipulation, so that the sliding block 274 is in a first linear direction ( Y+) moves in the first linear direction (Y+), rotates in the second rotation direction up to 90 degrees, and is laid in parallel with the rear surface of the display unit 100, thereby making the display unit 100 elastic. It may be arranged (or implemented) in a plane shape having a curvature R0 of O (zero) by the restoring force.

19 is a diagram for describing a position adjustment unit according to an example of the present specification.

1 and 19, the position control unit 700 according to an example of the present specification can raise (Y+) or lower (Y-) the height of the display unit 100 mounted on the stand 300. Can be implemented so that

The position adjustment unit 700 may include a support bracket 710 and a display lifting unit 720.

The support bracket 710 may be coupled to the rear surface of the display unit 100. The support bracket 710 according to an example may be coupled to the gear box 278 of the curvature variable unit 200 disposed on the rear surface of the display unit 100 illustrated in FIGS. 14 and 15. For example, the support bracket 710 may be coupled to the gear box 278 by a fastening member such as screws or bolts or may support the gear box 278. The fastening member may be coupled to a plurality of mounting coupling portions 278a disposed on the gear box 278.

The display lifting unit 720 may be disposed on the post 330 of the stand 300 and connected to the support bracket 710. The display lifting unit 720 raises (Y+) or descends (Y-) the support bracket 710 in the second direction (Y) according to the user's manipulation of the lifting control knob 727 to the support bracket 710. The height of the mounted display unit 100 can be adjusted. For example, the display lifting unit 720 may raise or lower the height of the display unit 100 from the reference position Pref by lifting the support bracket 710 according to the ball screw method.

The display lifting unit 720 according to an example may include a connection frame 721, a lifting shaft 723, a lifting guide 725, and a lifting adjustment knob 727.

The connection frame 721 may be disposed in the thickness direction Z of the display unit 100 and may pass through the inner wall of the post 330 of the stand 300 and be coupled to the support bracket 710.

The elevating shaft 723 may be disposed to be elevating in the interior of the post 330 so as to be parallel to the second direction Y, and may be coupled to the connection frame 721.

The elevating guide 725 is disposed inside the post 330 so as to be parallel to the second direction Y, and may guide the elevating shaft 723. For example, the lifting guide 725 may include a guide rail for guiding the lifting of the lifting shaft 723. In this case, the lifting shaft 723 includes a guide groove into which the guide rail of the lifting guide 725 is inserted, and may be elevated in the second direction Y along the guide rail of the lifting guide 725.

The elevation adjustment knob 727 may be rotatably disposed on the upper surface of the post 330 and may be connected to the upper side of the elevation shaft 725. The elevation adjustment knob 727 rotates in the first rotation direction according to the user's manipulation to raise (Y+) the elevation shaft 725, and rotates in the second rotation direction according to the user's manipulation to lower the elevation shaft 725 (Y -) You can. To this end, the elevation adjustment knob 727 may include a threaded portion 727a, and the elevation shaft 725 is disposed on the upper side and connected (or meshed) with the threaded portion 727a of the elevation adjustment knob 727. It may include a screw hole (725b).

The threaded portion 727a of the elevation adjustment knob 727 may rotate according to the rotation of the elevation adjustment knob 727 to linearly move the elevation shaft 725 in the second direction Y. For example, when the lifting adjustment knob 727 rotates in the first rotation direction, the threaded portion 727a rotates in the first rotation direction to move the lifting shaft 725 in a linear motion in the second direction (Y) (or Can be raised). Conversely, when the lifting adjustment knob 727 rotates in the second rotation direction, the threaded portion 727a rotates in the second rotation direction to move the lifting shaft 725 in a linear motion (or descending) in the second direction (Y). I can make it.

The position control unit 700 according to an example of the present specification may be implemented to tilt the display unit 100 in a vertical state (Pv) mounted on the stand 300 at a predetermined angle (θ1, θ2). To this end, the position adjustment unit 700 may further include a display tilt unit 730.

The display tilt unit 730 is disposed between the support bracket 710 and the display elevating unit 720 to tilt the display unit 100 at a predetermined angle according to a user's manipulation (θ1, θ2).

The display tilt unit 730 according to an example may include a tilt housing 731, a support frame 732, a ball nut 735, a tilt adjustment knob 737, and a knob support 739.

The tilt housing 731 may be coupled to the rear surface of the support bracket 710. For example, the tilt housing 731 may be coupled to the rear surface of the support bracket 710 between the support bracket 710 and the post 330 of the stand 300.

The support frame 732 may be supported (or coupled) to the connection frame 721 of the display lifting unit 720 and rotatably supported on the tilt housing 731. The tilt housing 731 may be rotatably supported on the support frame 732 via the tilt shaft 733.

The ball nut 735 (or the ball screw nut) may be fixed to the inner upper side of the tilt housing 731.

The tilt adjustment knob 737 may be disposed on the rear surface of the tilt housing 731 to be connected (or meshed) to the ball nut 735. The tilt adjustment knob 737 may include a ball screw that penetrates the rear surface of the tilt housing 731 and is connected (or meshed) to the ball nut 735.

The tilt adjustment knob 737 rotates in the first rotation direction according to the user's manipulation, and moves the ball nut 735 in the thickness direction Z of the display unit 100. The 731 may be tilted at the first angle θ1. For example, when the tilt control knob 737 is rotated in the first rotation direction, the display unit 100 in the vertical state Pv is in a vertical state Pv as the upper side protrudes toward the front of the display device rather than the lower side. It may be tilted at a first angle θ1 from.

Conversely, the tilt adjustment knob 737 rotates in the second rotation direction according to the user's operation, and moves the ball nut 735 backward in the thickness direction Z of the display unit 100, thereby tilting the tilt axis 733 as the rotation axis. The housing 731 may be returned to the vertical state Pv or may be tilted at the second angle θ2 from the vertical state Pv. For example, the display unit 100 in a vertical state (Pv) is in a vertical state (Pv) as the lower part protrudes toward the front of the display device than the upper part when the tilt control knob 737 is rotated in the second rotation direction. It may be tilted at a second angle θ2 from.

The knob support part 739 may be coupled to the upper side of the support frame 732 or protrude from the upper side of the support frame 732 and rotatably support the tilt adjustment knob 737. The knob support part 739 may rotatably support a protruding shaft protruding from the rear surface of the tilt control knob 737. Accordingly, the tilt adjustment knob 737 may linearly move the ball nut 735 by rotating in place without linear motion by supporting the knob support portion 739 as a support.

As such, the display device including the position adjustment unit 700 according to the present example may provide a viewing height and angle suitable for a user's taste by adjusting the height and angle of the display unit 100 according to user manipulation.

20 is a view for explaining a curvature variable unit according to another example of the present specification, FIG. 21 is an enlarged view of a portion'B8' shown in FIG. 20, and FIG. 22 is a portion'B9' shown in FIG. FIG. 23 is an enlarged view of a portion'B10' shown in FIG. 20, which is a change of a curvature variable unit in the display device shown in FIGS. 1 to 13. Accordingly, in the following description, the same reference numerals are assigned to the remaining constituent elements except for the curvature variable unit, and redundant description thereof will be omitted or simplified.

20 to 23, a curvature variable unit 200 according to another example of the present specification may include an arc member 210, a guider 230, and a driving unit 220.

The arc member 210 may be disposed on the rear surface of the display unit 100. For example, the arc member 210 may be disposed on the rear surface of the back cover 120. The arc member 210 rotates according to the driving of the driving unit 220 to move both sides of the display unit 100 toward the front or rear side of the display device.

The arc member 210 according to an example may include a first arc member 211 and a second arc member 213.

The first arc member 211 may have a convex curved shape toward the first long side of the display unit 100. The center (or length center) of the first arc member 211 is adjacent to the first long side of the display unit 100, and both ends (or both sides) of the first arc member 211 are It may be adjacent to the vertical middle line VCL.

The second arc member 213 may have a convex curved shape toward the second long side of the display unit 100. The center (or length center) of the second arc member 213 is adjacent to the second long side of the display unit 100, and both ends (or both sides) of the second arc member 213 are It may be adjacent to the vertical middle line VCL.

The first arc member 211 and the second arc member 213 may rotate in opposite directions according to the driving of the driving unit 220. Each of the first arc member 211 and the second arc member 213 according to an example may rotate in a position opposite to each other according to the driving of the driving unit 220. For example, the first arc member 211 rotates in the first rotation direction in place according to the driving of the driving unit 220, and at the same time, the second arc member 213 is in place according to the driving of the driving unit 220. It can rotate in the second rotation direction. Conversely, the first arc member 211 rotates in a second rotation direction in place according to the driving of the driving unit 220, and at the same time, the second arc member 213 is rotated in the first position according to the driving of the driving unit 220. It can be rotated in the direction of rotation.

The space at the rear center of the display unit 100 disposed between the centers of each of the first arc member 211 and the second arc member 213 is the center of each of the first arc member 211 and the second arc member 213 May have a relatively wide size by being disposed adjacent to the long side of the display unit 100, thereby increasing the utilization of the rear space of the display unit 100 in which the instrument part or circuit part is disposed, and the instrument part Alternatively, arrangement of circuit components may be facilitated.

The guider 230 is disposed on the rear surface of the display unit 100 so as to be parallel to the second direction Y, and may support each of the first and second intermediate portions of the arc member 210 so as to be movable. The guider 230 may prevent the arc member 210 from being lifted when the arc member 210 having a curved shape rotates. Accordingly, the arc member 210 is disposed to be movable in a space between the rear surface of the display unit 100 and the middle portion of the guider 230 so that lifting can be prevented by the guider 230 when rotating. By supporting 230 as a support, both sides of the display unit 100 may protrude toward the front side of the display device.

The guider 230 according to an example is disposed in each of the third rear area RA3 and the fourth rear area RA4 of the display unit 100, and the first arc member 211 and the second arc member 213 Each can be supported movably. The guider 230 according to an example may include first to fourth guide members 235, 236, 237, and 238. Each of the first to fourth guide members 235, 236, 237, and 238 has a structure different from that of the first to fourth guide members shown in FIG. Will be omitted. Optionally, each of the first to fourth guide members 235, 236, 237, and 238 shown in FIG. 20 may be implemented to have substantially the same structure as the first to fourth guide members shown in FIG. 14. .

The first and third guide members 235 and 237 disposed in the third rear area RA3 of the display unit 100 may be disposed parallel to each other with the first vertical rigid member 161 interposed therebetween. The second and fourth guide members 236 and 238 disposed in the fourth rear area RA4 of the display unit 100 may be disposed parallel to each other with the second vertical rigid member 163 interposed therebetween.

Each of the first vertical rigid member 161 and the second vertical rigid member 163 may be disposed on the rear surface of the display unit 100 so as to be parallel to the second direction Y. Each of the first vertical rigid member 161 and the second vertical rigid member 163 according to an example may be implemented to have a constant width parallel to the first direction (X) and a constant length parallel to the second direction (Y). I can. For example, each of the first vertical rigid member 161 and the second vertical rigid member 163 may be made of a metal material, but is not limited thereto. Each of the first vertical rigid member 161 and the second vertical rigid member 163 may be fixed to the rear surface of the display unit 100 by a connecting member such as a screw or a bolt, but is not limited thereto, and a double-sided tape is used. It may be fixed to the rear surface of the display unit 100 by a member. Each of the first vertical rigid member 161 and the second vertical rigid member 163 may minimize or prevent vertical distortion when the curvature of the display unit 100 is varied.

The driving unit 220 may be disposed in the rear middle area of the display unit 100. The driving unit 220 may be disposed between the first arc member 211 and the second arc member 213.

The driving unit 220 may rotate the first arc member 211 and the second arc member 213 at the same time. The driving unit 220 may simultaneously rotate the first arc member 211 and the second arc member 213 in a rotation direction opposite to each other in place. For example, the driving unit 220 rotates the first arc member 211 in place by a maximum of 90 degrees in the first rotation direction and at the same time, the second arc member 213 is rotated in place by a maximum of 90 degrees in the second rotation direction. Can be rotated up to. Conversely, the driving unit 220 rotates the first arc member 211 in place by a maximum of 90 degrees in the second rotation direction and at the same time rotates the second arc member 213 in place by a maximum of 90 degrees in the first rotation direction. I can make it.

The driving unit 220 may rotate each of the first arc member 211 and the second arc member 213 at the same time in place through a linear motion linked to the rotational motion of the rotary motor.

The driving unit 220 according to an example may include a support plate 221, a holder 222, a fixed link 223, at least one rotation motor 224, and a gear assembly 225.

The support plate 221 may be disposed so as to overlap with the central rear portion of the display unit 100. For example, the support plate 221 is implemented to have a constant width parallel to the first direction (X) and a constant length parallel to the second direction (Y), and the first arc member 211 and the second arc member ( 213) It may be disposed (or combined) on the rear surface of the back cover 120 so as to overlap with each center (or length center). The support plate 221 may support each of the holder 222 and at least one rotation motor 224 and the gear assembly 225.

The holder 222 may be coupled to the support plate 221 and rotatably support the central portion of the arc member 210. The holder 222 according to an example is coupled to the support plate 221 and is coupled to the first holder 222a rotatably supporting the center of the first arc member 211 and the support plate 221 and is coupled to the second A second holder 222b rotatably supporting the central portion of the arc member 213 may be included. Since the first holder 222a and the second holder 222b have a structure different from those of the first and second holders 222a and 222b shown in FIGS. 8 to 10, they have substantially the same function. The redundant description of this will be omitted. Optionally, each of the first holder 222a and the second holder 222b illustrated in FIGS. 21 to 23 has substantially the same structure as the first and second holders 222a and 222b illustrated in FIGS. 8 to 10. It can be implemented to have.

The fixed link 223 may be fixed to the center of the arc member 210. For example, the fixing link 223 may be fixed to the center of the arc member 210 by a fixing member FM such as a screw or a bolt.

The fixed link 223 according to an example includes a first fixed link FL1 fixed to the center of the first arc member 211, and a second fixed link FL2 fixed to the center of the second arc member 213. It may include.

Each of the first fixing link FL1 and the second fixing link FL2 may include a pair of link fixing portions LFP protruding parallel to each other with holders 222a and 222b therebetween. The pair of link fixing parts LFP may be fixed to the centers of the corresponding arc members 211 and 213 by the fixing member FM, respectively.

The first fixed link FL1 is disposed on the outer surface of the first arc member 211 facing the first long side of the display unit 100 and is constant with respect to the second direction Y, as shown in FIG. It may be arranged to be inclined at an angle θ. The first fixed link FL1 may be inclined at a certain angle θ from the rear surface of the display unit 100. For example, the first fixed link FL1 may be inclined by 45 degrees in a counterclockwise direction from a vertical line extending from the central axis of the first arc member 211 in the thickness direction Z of the display unit 100. In this case, an angle between the extension line connecting the central axis of the first fixed link FL1 and the central axis of the first arc member 211 and the rear surface of the display unit 100 may be 45 degrees.

The second fixed link FL2 is disposed on the outer surface of the second arc member 213 facing the second long side of the display unit 100 and is constant with respect to the second direction Y, as shown in FIG. 24. It may be arranged to be inclined at an angle θ. The second fixed link FL2 may be inclined at a certain angle θ from the rear surface of the display unit 100. For example, the second fixed link FL2 may be inclined 45 degrees clockwise from a vertical line extending from the central axis of the second arc member 213 in the thickness direction Z of the display unit 100. In this case, an angle between the extension line connecting the central axis of the second fixed link FL2 and the central axis of the second arc member 213 and the rear surface of the display unit 100 may be 45 degrees.

At least one rotation motor 224 may be disposed in a rear middle region of the display unit 100 and supported by a support plate 221. The at least one rotation motor 224 may provide rotational force to the gear assembly 225 in response to a user manipulation for varying the curvature of the display unit 100.

The driving unit 220 according to the present example may include first and second rotation motors 224a and 224b (or a pair of rotation motors) to maintain balance, reduce noise, and secure a driving force (or rotational force) margin. .

The first and second rotation motors 224a and 224b may be disposed parallel to each other with the gear assembly 225 interposed therebetween. Each of the drive shaft (or rotation shaft) of the first rotation motor 224a and the drive shaft (or rotation shaft) of the second rotation motor 224b is disposed adjacent to the first arc member 211 or toward the first arc member 211 Can be. In this case, the first and second rotation motors 224a and 224b may rotate in the same direction.

Each of the first and second rotation motors 224a and 224b according to an example is arranged in a state rotated at a certain angle so that the drive shaft (or rotation shaft) faces the short side of the display unit 100 on the rear surface of the display unit 100 Can be.

The gear assembly 225 may be disposed on the support plate 221 and connected to the rotation motor 224. The gear assembly 225 may rotate the fixed link 223 in conjunction with the rotational motion of the rotation motor 224 and rotate the arc member 210 in place through the rotation of the fixed link 223. For example, the gear assembly 225 is interlocked with the rotational motion of the rotary motor 224 to rotate each of the first and second fixed links FL1 and FL2 of the fixed link 223 in opposite directions. Each of the first arc member 211 and the second arc member 213 may be rotated in place at the same time. The gear assembly 225 may be expressed as a gear assembly or a reduction gear unit, but is not limited thereto.

The gear assembly 225 according to an example may include a first rack gear RG1, a second rack gear RG2, a pinion gear PG, and a rotation transmission unit RTP. The gear assembly 225 including the first rack gear RG1, the second rack gear RG2, the pinion gear PG, and the rotation transmission unit RTP is shown in FIG. 8 except for the arrangement structure of the gears. Since it is substantially the same as the illustrated gear assembly, the same reference numerals are assigned to this, and redundant descriptions thereof will be omitted.

The curvature variable unit 200 according to an example may further include a fixing bracket 240.

The fixing bracket 240 is disposed at an angle to each of the third rear area RA3 and the fourth rear area RA4 of the display unit 100, and each of the first arc member 211 and the second arc member 213 The end can be supported to be movable. The fixing bracket 240 supports the ends of each of the first arc member 211 and the second arc member 213 to be movable, and the ends of each of the first arc member 211 and the second arc member 213 You can guide the movement. To this end, the fixing bracket 240 may include a side groove having a predetermined depth from an inner surface so that the ends of each of the first arc member 211 and the second arc member 213 are movably inserted.

The fixing bracket 240 may be disposed on the rear surface of the display unit 100 by being inclined at a certain angle with respect to the second direction Y without being parallel to the second direction Y. The fixing bracket 240 according to an example may be disposed to be inclined to correspond to the movement trajectory of the ends of the arc members 211 and 213 when the arc members 211 and 213 rotate. For example, when the display unit 110 has a flat shape, the ends of the arc members 211 and 213 may be disposed adjacent to the other ends of the fixing bracket 240. And, when the display unit 110 is changed from a flat shape to a curved shape, the ends of the arc members 211 and 213 move from the other end of the fixing bracket 240 to one end according to the rotation of the arc members 211 and 213. I can.

The fixing bracket 240 according to an example may include first to fourth fixing brackets 241, 242, 243 and 244.

Each of the first to fourth fixing brackets 241, 242, 243, 244 is not parallel to the second direction Y on the rear surface of the display unit 100 and is inclined at a certain angle with respect to the second direction Y. Except for being arranged, since it has a structure similar to the first to fourth fixing brackets 241, 242, 243, and 244 shown in FIG. 6, the same reference numerals are assigned to this and redundant descriptions thereof are omitted or Keep it brief.

One end of each of the first to fourth fixing brackets 241, 242, 243, 244 may be disposed adjacent to a corner portion of the display unit 100 or a corner portion of the back cover 120. The other end of each of the first to fourth fixing brackets 241, 242, 243, and 244 may be disposed inclined from one end toward the rear middle region of the display unit 100.

Based on the second direction (Y), each of the first to fourth fixing brackets 241, 242, 243, 244 is a movement trajectory of the ends of the arc members 211 and 213 when the arc members 211 and 213 rotate. It may be arranged inclined to correspond to. In this case, the side grooves (or side pockets) disposed on the inner surfaces of the first to fourth fixing brackets 241, 242, 243, 244 into which the ends of the arc members 211 and 213 are inserted have a certain depth. I can have it.

For example, when each of the first to fourth fixing brackets 241, 242, 243, and 244 is disposed parallel to the second direction Y, as shown in FIG. 8, the first to fourth fixing brackets Each of the brackets 241, 242, 243, 244 must have side grooves having a deep depth as a whole according to the movement trajectory of the ends of the arc members 211, 213, and thus the first to fourth fixing brackets 241, 242, 243, 244) each must have a relatively wide width. On the other hand, each of the first to fourth fixing brackets 241, 242, 243, 244 is not parallel to the second direction Y according to the movement trajectory of the ends of the arc members 211 and 213, as shown in FIG. When disposed in an inclined manner, each of the first to fourth fixing brackets 241, 242, 243, and 244 may have side grooves having a shallow depth as a whole, and thus, the first to fourth fixing brackets 241, 242, Each of 243 and 244 may have a relatively narrow width.

The driving unit 220 of the curvature variable unit 200 according to an example of the present specification may further include a guide rail 226 as shown in FIGS. 22 and 23.

The guide rail 226 is disposed between the support plate 221 and the rack gears RG1 and RG2 and may guide the linear motion of the rack gears RG1 and RG2.

The guide rail 226 according to an example includes a first guide rail 226a disposed between the support plate 221 and the first rack gear RG1, and between the support plate 221 and the second rack gear RG2. It may include a second guide rail (226b) disposed on. Each of the first guide rail 226a and the second guide rail 226b is the same as described above with reference to FIGS. 22 and 23, and thus the same reference numerals are assigned to them, and redundant descriptions thereof will be omitted.

The driving unit 220 of the curvature variable unit 200 according to an example of the present specification may further include a limit switch unit 227.

The limit switch unit 227 is disposed on the support plate 221 so as to be adjacent to the rack gear RG, and may limit the maximum distance of the linear motion of the rack gear RG. For example, the limit switch unit 227 may be implemented to limit the maximum distance of the linear motion of the rack gear RG according to the physical contact with the rack gear RG.

The limit switch unit 227 according to an example may include a first limit switch unit 227a and a second limit switch unit 227b.

The first limit switch unit 227a may limit a maximum linear motion distance of the first rack gear RG1 along the first linear direction Y+. The first limit switch unit 227a may limit the maximum rotation angle of the arc member 210 or limit the maximum curvature of the display unit 100.

The first limit switch unit 227a according to an example includes a first limit switch LS1 disposed on the support plate 221 so as to be adjacent to the first arc member 211, and an outer surface of the first rack gear RG1 It may include a first stopper (SP1) protruding from. The first limit switch LS1 generates a first limit signal when physically contacting the first stopper SP1 disposed in the first rack gear RG1 moving linearly along the first linear direction Y+. It can be provided to a variable curvature control circuit. The variable curvature control circuit may stop rotation of the rotary motor 224 in response to a first limit signal provided from the first limit switch LS1.

The second limit switch unit 227b may propose a maximum linear motion distance of the second rack gear RG2 along the second linear direction Y-.

The second limit switch unit 227b according to an example protrudes from the outer surface of the second limit switch LS2 and the second rack gear RG2 disposed on the support plate 221 so as to be adjacent to the pinion gear PG. It may include a second stopper (SP2). The second limit switch LS2 generates a second limit signal when physically contacting the second stopper SP2 disposed in the second rack gear RG2 moving linearly along the first linear direction Y+. It can be provided to a variable curvature control circuit. The variable curvature control circuit may stop rotation of the rotation motor 224 in response to a second limit signal provided from the second limit switch LS2.

The curvature variable unit 200 according to another example of the present specification may further include a gear box 278.

The gear box 278 is coupled to the support plate 221 and may support the driving unit 270.

The gear box 278 may be supported or mounted on a post of the stand. To this end, the gear box 278 may include a plurality of mounting coupling portions 278a. The plurality of mounting coupling portions 278a may be disposed on each of the upper and lower sides of the gear box 278, and may include a left and right symmetric structure based on the sliding block 274.

Additionally, the gear box 278 may be coupled with the positioning unit 700 shown in FIG. 19. In this case, in the display device according to the present example, in a state in which the display unit 100 is mounted on the stand 300 through the position adjustment unit 700, the display unit 100 ) Height and angle can be adjusted.

As such, the display device including the curvature variable unit 200 according to another example of the present specification, as shown in FIGS. 12A and 12B, is curved in a planar form according to the driving of the curvature variable unit 200. Since the shape may be varied from a curved shape to a flat shape, a redundant description thereof will be omitted.

The display device according to the present specification may be described as follows.

A display device according to some examples of the present specification includes a display unit including a display panel displaying an image, a curvature variable unit disposed on the rear surface of the display unit and variable curvature of the display unit, and a display panel disposed on the rear surface of the display unit. It may include a vibration unit for vibrating the display panel so that sound is output according to the vibration of.

According to some examples of the present specification, the display unit includes a back cover disposed on a rear surface of the display panel and supporting the vibration unit, and the back cover may include a slit overlapping the vibration unit.

According to some examples of the present specification, the vibration unit includes a pair of sound generating units coupled to the back cover and vibrating the display panel, and the slit may be implemented in the back cover overlapping between the pair of sound generating units. .

According to some examples of the present specification, the sound generating unit includes a bobbin and a coil wound around the bobbin, and the bobbin may pass through a back cover and be connected to a rear surface of the display panel.

According to some examples of the present specification, the vibration unit may include a first vibration unit disposed in a first vibration region of the display unit, and a second vibration unit disposed in a second vibration region of the display unit.

According to some examples of the present specification, the display unit includes a back cover disposed on the rear surface of the display panel and supporting each of the first vibration unit and the second vibration unit, and each of the first vibration unit and the second vibration unit is parallel to each other. And a first sound generating unit and a second sound generating unit disposed so that the back cover may include a slit disposed between the first sound generating unit and the second sound generating unit.

According to some examples of the present specification, the curvature variable unit includes an arc member disposed on the rear surface of the display unit, a driving unit disposed at the rear center of the display unit and rotating the center of the arc member, and A first guide member that supports between the center and one end, and a second guide member that is disposed on the rear surface of the display unit and supports between the center and the other end of the arc member.

According to some examples of the present specification, the curvature variable unit includes a first arc member and a second arc member disposed in each of the first rear area and the second rear area of the display unit parallel to the first direction, and a first arc member crossing the first direction. A guider disposed in each of the third and fourth rear areas of the display unit parallel to the two directions and supporting each of the first and second arc members, and disposed in each of the third and fourth rear areas of the display unit And a fixed bracket for movably supporting the ends of each of the first and second arc members, and a driving unit disposed in the rear middle region of the display unit and rotating central portions of each of the first and second arc members at the same time. Can include.

According to some examples of the present specification, each of the first arc member and the second arc member has a curved shape, and may rotate in opposite directions according to the driving of the driving unit.

According to some examples of the present specification, each of the first arc member and the second arc member has a curved shape, and a central portion of each of the first arc member and the second arc member is adjacent to the rear center portion of the display unit, and the first arc member Each end of the member and the second arc member may be adjacent to a corner portion of the display unit.

According to some examples of the present specification, the driving unit is a first holder rotatably supporting the central portion of the first arc member, a second holder rotatably supporting the central portion of the second arc member, and fixed to the central portion of the first arc member. A fixed first fixed link, a second fixed link fixed to the center of the second arc member, at least one rotary motor, a first rack gear for rotating the first fixed link, a second rack for rotating the second fixed link It may include a gear, a pinion gear connected between the first rack gear and the first rack gear, and a rotation transmission unit that rotates the pinion gear according to the rotation of at least one rotation motor.

According to some examples of the present specification, the curvature variable unit includes a first arc member and a second arc member disposed at each of the first rear area and the second rear area of the display unit parallel to the first direction, and a first arc member crossing the first direction. A guider disposed in each of the third rear area and the fourth rear area of the display unit parallel to the two directions and supporting each of the first and second arc members, each of the third rear edge portion and the fourth rear edge portion of the display unit A fixing bracket disposed in the fixing bracket, a joint member rotatably disposed on the fixing bracket and inserted into the ends of each of the first arc member and the second arc member, and the first arc member and the second arc disposed at the rear middle portion of the display unit It may include a driving unit for rotating the central portion of each member at the same time.

According to some examples of the present specification, each of the first arc member and the second arc member has a curved shape, and may rotate in the same direction while moving in the same direction according to the driving of the driving unit.

According to some examples of the present specification, the driving unit is a guide plate disposed on the rear surface of the display unit and having a guide rail, a first holder link disposed on one side of the guide plate and rotatably supporting the center of the first arc member, and a guide. A second holder link disposed on the other side of the plate and rotatably supporting the center of the second arc member, and one or a pair of slidably disposed on the guide rail connected between the first holder link and the second holder link. Sliding blocks with rack gears, one or a pair of pinion gears for sliding one or a pair of rack gears, one or a pair of rotary motors, and one or a pair of rotations depending on the rotation of one or a pair of rotary motors It may include a rotation transmission unit for rotating the pinion gear.

According to some examples of the present specification, the curvature variable unit includes a first arc member and a second arc member disposed in each of the first rear area and the second rear area of the display unit parallel to the first direction, and a first arc member crossing the first direction. A guider disposed in each of the third and fourth rear areas of the display unit parallel to the two directions and supporting each of the first and second arc members, and disposed in each of the third and fourth rear areas of the display unit And a fixing bracket for movably supporting the ends of each of the first and second arc members, and a driving part disposed in the rear middle region of the display unit and rotating the centers of each of the first and second arc members at the same time. It includes, and the fixing bracket may be disposed inclined with respect to the second direction.

According to some examples of the present specification, each of the first arc member and the second arc member has a curved shape, and may rotate in opposite directions according to the driving of the driving unit.

According to some examples of the present specification, the driving unit is a first holder rotatably supporting the central portion of the first arc member, a second holder rotatably supporting the central portion of the second arc member, and fixed to the central portion of the first arc member. A fixed first fixed link, a second fixed link fixed to the center of the second arc member, at least one rotary motor, a first rack gear for rotating the first fixed link, a second rack for rotating the second fixed link It may include a gear, a pinion gear connected between the first rack gear and the first rack gear, and a rotation transmission unit that rotates the pinion gear according to the rotation of at least one rotation motor.

A display device according to some examples of the present specification includes a display unit including a display panel that displays an image, and a curvature variable unit disposed on a rear surface of the display unit to change a curvature of the display unit, and the curvature variable unit includes a first A first arc member and a second arc member disposed in each of the first rear area and the second rear area of the display unit parallel to the direction and having a curved shape, and a first arc member and a second arc disposed at an intermediate rear portion of the display unit A driving unit that simultaneously rotates the central part of each member, and is disposed on the rear surface of the display unit so as to be parallel to the second direction crossing the first direction, and the middle part between the central part and both ends of each of the first and second arc members is movable. A guider that supports the first direction and a fixing bracket disposed at each of the third rear edge portion and the fourth rear edge portion of the display unit parallel to the second direction crossing the first direction, and the fixing bracket rotates according to the driving of the driving unit. The pressing force applied by the ends of each of the first arc member and the second arc member may be transmitted to the third rear edge portion and the fourth rear edge portion of the display unit, respectively.

According to some examples of the present specification, the fixing bracket may movably support ends of each of the first arc member and the second arc member.

According to some examples of the present specification, the fixing bracket may be disposed inclined with respect to the second direction.

According to some examples of the present specification, the curvature variable unit further includes a joint member rotatably disposed on the fixing bracket, and the joint member includes a pin portion inserted into an end of each of the first arc member and the second arc member, and the pin portion. It may include a ring portion connected to the end and rotatably disposed on the fixing bracket.

The display device according to some examples of the present specification may further include a vibration unit disposed on the rear surface of the display unit and vibrating the display panel so that sound is output according to the vibration of the display panel.

According to some examples of the present specification, the display unit includes a back cover disposed on the rear side of the display panel and supporting the vibration unit, the vibration unit is coupled to the back cover and includes a pair of sound generating units for vibrating the display panel, , The back cover may include a slit overlapping between the pair of sound generating units.

The display device according to some examples of the present specification may further include a rear curtain unit disposed on the rear surface of the display unit to cover the curvature variable unit.

According to some examples of the present specification, the rear curtain unit is a curtain edge frame connected to a rear edge portion of the display unit and having a first opening, a curtain rear frame having a second opening coupled to the curtain edge frame and overlapping the first opening, And a plurality of curtain members disposed to be spaced apart from each other in the second opening of the curtain frame.

According to some examples of the present specification, each of the plurality of curtain members may include a fiber material or a fabric material.

Features, structures, effects, and the like described in the examples of the present specification described above are included in at least one example of the present specification, and are not necessarily limited to only one example. Further, the features, structures, effects, and the like illustrated in at least one example of the present specification may be combined or modified for other examples by a person having ordinary knowledge in the field to which the present specification belongs. Therefore, contents related to such combinations and modifications should be construed as being included in the scope of the present specification.

The present specification described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope of the technical matters of the present specification. It will be obvious to those who have the knowledge of Therefore, the scope of the present specification is indicated by the claims to be described later, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present specification.

100: display unit 110: display panel
120: back cover 200: curvature variable unit
210: arc member 220, 270: driving unit
230: guider 240, 260: fixing bracket
250: joint member 300: stand
400: rear curtain unit 500: vibration unit
510: first vibration unit 511: first sound generating unit
513: second sound generating unit 530: second vibration unit
600: cushioning member 700: positioning unit
720: display lifting unit 730: display tilt unit

Claims (25)

A display unit including a display panel displaying an image;
A curvature variable unit disposed on a rear surface of the display unit and configured to vary a curvature of the display unit; And
And a vibration unit disposed on the rear surface of the display unit and vibrating the display panel so that sound is output according to the vibration of the display panel. The method of claim 1,
The display unit includes a back cover disposed on the rear surface of the display panel and supporting the vibration unit,
The display device, wherein the back cover includes a slit overlapping the vibration unit. The method of claim 2,
The vibration unit includes a pair of sound generating units coupled to the back cover and vibrating the display panel,
The slit is implemented in a back cover overlapping between the pair of sound generating units. The method of claim 3,
The sound generating unit includes a bobbin and a coil wound around the bobbin,
The bobbin passes through the back cover and is connected to a rear surface of the display panel. The method of claim 1,
The vibration unit,
A first vibration unit disposed in a first vibration region of the display unit; And
A display device comprising a second vibration unit disposed in a second vibration region of the display unit. The method of claim 5,
The display unit is disposed on the rear surface of the display panel and includes a back cover supporting each of the first vibration unit and the second vibration unit,
Each of the first vibration unit and the second vibration unit includes a first sound generation unit and a second sound generation unit arranged parallel to each other,
The back cover includes a slit disposed between the first sound generating unit and the second sound generating unit. The method according to any one of claims 1 to 6,
The curvature variable unit,
An arc member disposed on a rear surface of the display unit;
A driving unit disposed at a central rear portion of the display unit and rotating a central portion of the arc member;
A first guide member disposed on a rear surface of the display unit and supporting between a central portion and one end of the arc member; And
A display device comprising a second guide member disposed on a rear surface of the display unit and supporting between a center portion and the other end of the arc member. The method according to any one of claims 1 to 6,
The curvature variable unit,
A first arc member and a second arc member disposed in each of a first rear area and a second rear area of the display unit parallel to a first direction;
A guider disposed in each of a third rear area and a fourth rear area of the display unit parallel to a second direction crossing the first direction and supporting each of the first arc member and the second arc member;
A fixing bracket disposed in each of the third rear area and the fourth rear area of the display unit, and movably supporting ends of each of the first and second arc members; And
A display apparatus comprising: a driving unit disposed in a rear middle region of the display unit and rotating central portions of the first arc member and the second arc member at the same time. The method of claim 8,
Each of the first arc member and the second arc member has a curved shape and rotates in opposite directions according to the driving of the driving unit. The method of claim 8,
Each of the first arc member and the second arc member has a curved shape,
A central portion of each of the first arc member and the second arc member is adjacent to a central rear portion of the display unit, and an end of each of the first arc member and the second arc member is adjacent to a corner portion of the display unit, Display device. The method of claim 8,
The driving unit,
A first holder rotatably supporting a central portion of the first arc member;
A second holder rotatably supporting a central portion of the second arc member;
A first fixing link fixed to the center of the first arc member;
A second fixing link fixed to the center of the second arc member;
At least one rotary motor;
A first rack gear for rotating the first fixed link;
A second rack gear for rotating the second fixed link;
A pinion gear connected between the first rack gear and the first rack gear; And
A display device comprising a rotation transmission unit configured to rotate the pinion gear according to the rotation of the at least one rotation motor. The method according to any one of claims 1 to 6,
The curvature variable unit,
A first arc member and a second arc member disposed in each of a first rear area and a second rear area of the display unit parallel to a first direction;
A guider disposed in each of a third rear area and a fourth rear area of the display unit parallel to a second direction crossing the first direction and supporting each of the first arc member and the second arc member;
A fixing bracket disposed on each of a third rear edge portion and a fourth rear edge portion of the display unit;
A joint member rotatably disposed on the fixing bracket and inserted into ends of each of the first arc member and the second arc member; And
A display apparatus comprising: a driving unit disposed at an intermediate rear portion of the display unit and rotating central portions of the first arc member and the second arc member at the same time. The method of claim 12,
Each of the first arc member and the second arc member has a curved shape, and moves in the same direction as each other according to the driving of the driving unit and rotates in the same direction. The method of claim 12,
The driving unit,
A guide plate disposed on a rear surface of the display unit and having a guide rail;
A first holder link disposed on one side of the guide plate and rotatably supporting a central portion of the first arc member;
A second holder link disposed on the other side of the guide plate and rotatably supporting a central portion of the second arc member;
A sliding block connected between the first holder link and the second holder link and having one or a pair of rack gears slidably disposed on the guide rail;
One or a pair of pinion gears for sliding the one or the pair of rack gears;
One or a pair of rotary motors; And
A display device comprising a rotation transmission unit for rotating the one or the pair of pinion gears according to the rotation of the one or the pair of rotation motors. The method according to any one of claims 1 to 6,
The curvature variable unit,
A first arc member and a second arc member disposed in each of a first rear area and a second rear area of the display unit parallel to a first direction;
A guider disposed in each of a third rear area and a fourth rear area of the display unit parallel to a second direction crossing the first direction and supporting each of the first arc member and the second arc member;
A fixing bracket disposed in each of the third rear area and the fourth rear area of the display unit, and movably supporting ends of each of the first and second arc members; And
And a driving unit disposed in a rear middle region of the display unit and rotating central portions of each of the first arc member and the second arc member at the same time,
The fixing bracket is disposed to be inclined with respect to the second direction. The method of claim 15,
Each of the first arc member and the second arc member has a curved shape and rotates in opposite directions according to the driving of the driving unit. The method of claim 15,
The driving unit,
A first holder rotatably supporting a central portion of the first arc member;
A second holder rotatably supporting a central portion of the second arc member;
A first fixing link fixed to the center of the first arc member;
A second fixing link fixed to the center of the second arc member;
At least one rotary motor;
A first rack gear for rotating the first fixed link;
A second rack gear for rotating the second fixed link;
A pinion gear connected between the first rack gear and the first rack gear; And
A display device comprising a rotation transmission unit configured to rotate the pinion gear according to the rotation of the at least one rotation motor. A display unit including a display panel displaying an image; And
It is disposed on the rear surface of the display unit and includes a curvature variable unit for varying the curvature of the display unit,
The curvature variable unit,
A first arc member and a second arc member disposed in each of a first rear area and a second rear area of the display unit parallel to the first direction and having a curved shape;
A driving unit disposed at an intermediate rear portion of the display unit and rotating central portions of the first and second arc members at the same time;
A guide disposed on a rear surface of the display unit so as to be parallel to a second direction crossing the first direction, and movably supporting an intermediate portion between the central portion and both ends of the first arc member and the second arc member; And
And a fixing bracket disposed at each of a third rear edge portion and a fourth rear edge portion of the display unit parallel to a second direction crossing the first direction,
The fixing bracket transmits the pressing force applied by the ends of each of the first and second arc members rotating according to the driving of the driving unit to the third and fourth rear edge portions of the display unit. That, the display device. The method of claim 18,
The fixing bracket movably supports the ends of each of the first arc member and the second arc member. The method of claim 19,
The fixing bracket is disposed to be inclined with respect to the second direction. The method of claim 18,
The curvature variable unit further includes a joint member rotatably disposed on the fixing bracket,
The joint member,
A pin portion inserted into an end of each of the first arc member and the second arc member; And
A display device comprising a ring portion connected to an end of the pin portion and rotatably disposed on the fixing bracket. The method of claim 18,
The display device further comprises a vibration unit disposed on the rear surface of the display unit and vibrating the display panel so that sound is output according to the vibration of the display panel. The method of claim 22,
The display unit includes a back cover disposed on the rear surface of the display panel and supporting the vibration unit,
The vibration unit includes a pair of sound generating units coupled to the back cover and vibrating the display panel,
The back cover includes a slit overlapping between the pair of sound generating units. The method according to any one of claims 1 to 6, and 18 to 23,
The display device further comprises a rear curtain unit disposed on a rear surface of the display unit to cover the curvature variable unit. The method of claim 24,
The rear curtain unit,
A curtain edge frame connected to a rear edge portion of the display unit and having a first opening;
A curtain rear frame coupled to the curtain edge frame and having a second opening overlapping the first opening; And
A display device comprising a plurality of curtain members disposed to be spaced apart from each other in the second opening of the curtain frame.

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